Home / 9,105.62-12,565.87-5,327.91

Finding the Fourth Proportional to 9,105.62, 12,565.87 and 5,327.91

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Solution

The fourth proportional to 9,105.62, 12,565.87 and 5,327.91 is: 7,352.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,105.62 : 12,565.87 = 5,327.91 : x
  2. Step 2: Convert to fraction form
    9,105.62/12,565.87 = 5,327.91/x
  3. Step 3: Cross multiply
    9,105.62x = 12,565.87 × 5,327.91
  4. Step 4: Simplify right side
    9,105.62x = 66,949,811.11
  5. Step 5: Solve for x
    x = 66,949,811.11/9,105.62
  6. Step 6: Final answer
    x = 7,352.59

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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.