Home / 13,998.36-19,317.52-7,710.76

Finding the Fourth Proportional to 13,998.36, 19,317.52 and 7,710.76

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Solution

The fourth proportional to 13,998.36, 19,317.52 and 7,710.76 is: 10,640.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.36 : 19,317.52 = 7,710.76 : x
  2. Step 2: Convert to fraction form
    13,998.36/19,317.52 = 7,710.76/x
  3. Step 3: Cross multiply
    13,998.36x = 19,317.52 × 7,710.76
  4. Step 4: Simplify right side
    13,998.36x = 148,952,760.52
  5. Step 5: Solve for x
    x = 148,952,760.52/13,998.36
  6. Step 6: Final answer
    x = 10,640.73

Related Problems

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Half scale
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Double scale
Find fourth proportional to 13,999.36, 19,318.90 and 7,711.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.