Home / 9,107.57-12,565.97-5,331.66

Finding the Fourth Proportional to 9,107.57, 12,565.97 and 5,331.66

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Solution

The fourth proportional to 9,107.57, 12,565.97 and 5,331.66 is: 7,356.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,107.57 : 12,565.97 = 5,331.66 : x
  2. Step 2: Convert to fraction form
    9,107.57/12,565.97 = 5,331.66/x
  3. Step 3: Cross multiply
    9,107.57x = 12,565.97 × 5,331.66
  4. Step 4: Simplify right side
    9,107.57x = 66,997,425.82
  5. Step 5: Solve for x
    x = 66,997,425.82/9,107.57
  6. Step 6: Final answer
    x = 7,356.23

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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.