Home / 9,105.62-12,565.88-5,330.99

Finding the Fourth Proportional to 9,105.62, 12,565.88 and 5,330.99

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Solution

The fourth proportional to 9,105.62, 12,565.88 and 5,330.99 is: 7,356.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,105.62 : 12,565.88 = 5,330.99 : x
  2. Step 2: Convert to fraction form
    9,105.62/12,565.88 = 5,330.99/x
  3. Step 3: Cross multiply
    9,105.62x = 12,565.88 × 5,330.99
  4. Step 4: Simplify right side
    9,105.62x = 66,988,600.02
  5. Step 5: Solve for x
    x = 66,988,600.02/9,105.62
  6. Step 6: Final answer
    x = 7,356.85

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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.