Home / 9,385.77-12,952.31-5,136.92

Finding the Fourth Proportional to 9,385.77, 12,952.31 and 5,136.92

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Solution

The fourth proportional to 9,385.77, 12,952.31 and 5,136.92 is: 7,088.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.77 : 12,952.31 = 5,136.92 : x
  2. Step 2: Convert to fraction form
    9,385.77/12,952.31 = 5,136.92/x
  3. Step 3: Cross multiply
    9,385.77x = 12,952.31 × 5,136.92
  4. Step 4: Simplify right side
    9,385.77x = 66,534,938.41
  5. Step 5: Solve for x
    x = 66,534,938.41/9,385.77
  6. Step 6: Final answer
    x = 7,088.91

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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.