Home / 9,013.71-12,439.61-6,634.57

Finding the Fourth Proportional to 9,013.71, 12,439.61 and 6,634.57

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Solution

The fourth proportional to 9,013.71, 12,439.61 and 6,634.57 is: 9,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.71 : 12,439.61 = 6,634.57 : x
  2. Step 2: Convert to fraction form
    9,013.71/12,439.61 = 6,634.57/x
  3. Step 3: Cross multiply
    9,013.71x = 12,439.61 × 6,634.57
  4. Step 4: Simplify right side
    9,013.71x = 82,531,463.32
  5. Step 5: Solve for x
    x = 82,531,463.32/9,013.71
  6. Step 6: Final answer
    x = 9,156.21

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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.