Home / 9,902.40-13,665.33-5,425.44

Finding the Fourth Proportional to 9,902.40, 13,665.33 and 5,425.44

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Solution

The fourth proportional to 9,902.40, 13,665.33 and 5,425.44 is: 7,487.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,902.40 : 13,665.33 = 5,425.44 : x
  2. Step 2: Convert to fraction form
    9,902.40/13,665.33 = 5,425.44/x
  3. Step 3: Cross multiply
    9,902.40x = 13,665.33 × 5,425.44
  4. Step 4: Simplify right side
    9,902.40x = 74,140,428.00
  5. Step 5: Solve for x
    x = 74,140,428.00/9,902.40
  6. Step 6: Final answer
    x = 7,487.12

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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.