Home / 13,998.08-19,317.12-7,711.04

Finding the Fourth Proportional to 13,998.08, 19,317.12 and 7,711.04

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Solution

The fourth proportional to 13,998.08, 19,317.12 and 7,711.04 is: 10,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.08 : 19,317.12 = 7,711.04 : x
  2. Step 2: Convert to fraction form
    13,998.08/19,317.12 = 7,711.04/x
  3. Step 3: Cross multiply
    13,998.08x = 19,317.12 × 7,711.04
  4. Step 4: Simplify right side
    13,998.08x = 148,955,085.00
  5. Step 5: Solve for x
    x = 148,955,085.00/13,998.08
  6. Step 6: Final answer
    x = 10,641.11

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Double scale
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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.