Home / 9,901.48-13,664.04-5,425.40

Finding the Fourth Proportional to 9,901.48, 13,664.04 and 5,425.40

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Solution

The fourth proportional to 9,901.48, 13,664.04 and 5,425.40 is: 7,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,901.48 : 13,664.04 = 5,425.40 : x
  2. Step 2: Convert to fraction form
    9,901.48/13,664.04 = 5,425.40/x
  3. Step 3: Cross multiply
    9,901.48x = 13,664.04 × 5,425.40
  4. Step 4: Simplify right side
    9,901.48x = 74,132,882.62
  5. Step 5: Solve for x
    x = 74,132,882.62/9,901.48
  6. Step 6: Final answer
    x = 7,487.05

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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.