Home / 13,998.23-19,317.56-7,710.61

Finding the Fourth Proportional to 13,998.23, 19,317.56 and 7,710.61

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Solution

The fourth proportional to 13,998.23, 19,317.56 and 7,710.61 is: 10,640.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.23 : 19,317.56 = 7,710.61 : x
  2. Step 2: Convert to fraction form
    13,998.23/19,317.56 = 7,710.61/x
  3. Step 3: Cross multiply
    13,998.23x = 19,317.56 × 7,710.61
  4. Step 4: Simplify right side
    13,998.23x = 148,950,171.31
  5. Step 5: Solve for x
    x = 148,950,171.31/13,998.23
  6. Step 6: Final answer
    x = 10,640.64

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Half scale
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Double scale
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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.