Home / 9,901.62-13,664.34-5,425.74

Finding the Fourth Proportional to 9,901.62, 13,664.34 and 5,425.74

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Solution

The fourth proportional to 9,901.62, 13,664.34 and 5,425.74 is: 7,487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,901.62 : 13,664.34 = 5,425.74 : x
  2. Step 2: Convert to fraction form
    9,901.62/13,664.34 = 5,425.74/x
  3. Step 3: Cross multiply
    9,901.62x = 13,664.34 × 5,425.74
  4. Step 4: Simplify right side
    9,901.62x = 74,139,156.11
  5. Step 5: Solve for x
    x = 74,139,156.11/9,901.62
  6. Step 6: Final answer
    x = 7,487.58

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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.