Home / 9,901.97-13,664.72-5,425.68

Finding the Fourth Proportional to 9,901.97, 13,664.72 and 5,425.68

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Solution

The fourth proportional to 9,901.97, 13,664.72 and 5,425.68 is: 7,487.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,901.97 : 13,664.72 = 5,425.68 : x
  2. Step 2: Convert to fraction form
    9,901.97/13,664.72 = 5,425.68/x
  3. Step 3: Cross multiply
    9,901.97x = 13,664.72 × 5,425.68
  4. Step 4: Simplify right side
    9,901.97x = 74,140,370.88
  5. Step 5: Solve for x
    x = 74,140,370.88/9,901.97
  6. Step 6: Final answer
    x = 7,487.44

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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.