Home / 13,998.66-19,317.26-7,711.02

Finding the Fourth Proportional to 13,998.66, 19,317.26 and 7,711.02

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Solution

The fourth proportional to 13,998.66, 19,317.26 and 7,711.02 is: 10,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.66 : 19,317.26 = 7,711.02 : x
  2. Step 2: Convert to fraction form
    13,998.66/19,317.26 = 7,711.02/x
  3. Step 3: Cross multiply
    13,998.66x = 19,317.26 × 7,711.02
  4. Step 4: Simplify right side
    13,998.66x = 148,955,778.21
  5. Step 5: Solve for x
    x = 148,955,778.21/13,998.66
  6. Step 6: Final answer
    x = 10,640.72

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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.