Home / 12,589.62-17,343.66-8,805.70

Finding the Fourth Proportional to 12,589.62, 17,343.66 and 8,805.70

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Solution

The fourth proportional to 12,589.62, 17,343.66 and 8,805.70 is: 12,130.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589.62 : 17,343.66 = 8,805.70 : x
  2. Step 2: Convert to fraction form
    12,589.62/17,343.66 = 8,805.70/x
  3. Step 3: Cross multiply
    12,589.62x = 17,343.66 × 8,805.70
  4. Step 4: Simplify right side
    12,589.62x = 152,723,066.86
  5. Step 5: Solve for x
    x = 152,723,066.86/12,589.62
  6. Step 6: Final answer
    x = 12,130.87

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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.