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Finding the Fourth Proportional to 8,343.59, 12,519.70 and 3,666.88

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Solution

The fourth proportional to 8,343.59, 12,519.70 and 3,666.88 is: 5,502.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.59 : 12,519.70 = 3,666.88 : x
  2. Step 2: Convert to fraction form
    8,343.59/12,519.70 = 3,666.88/x
  3. Step 3: Cross multiply
    8,343.59x = 12,519.70 × 3,666.88
  4. Step 4: Simplify right side
    8,343.59x = 45,908,178.75
  5. Step 5: Solve for x
    x = 45,908,178.75/8,343.59
  6. Step 6: Final answer
    x = 5,502.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.