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Finding the Fourth Proportional to 8,331.51, 12,502.31 and 3,651.79

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Solution

The fourth proportional to 8,331.51, 12,502.31 and 3,651.79 is: 5,479.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.51 : 12,502.31 = 3,651.79 : x
  2. Step 2: Convert to fraction form
    8,331.51/12,502.31 = 3,651.79/x
  3. Step 3: Cross multiply
    8,331.51x = 12,502.31 × 3,651.79
  4. Step 4: Simplify right side
    8,331.51x = 45,655,805.10
  5. Step 5: Solve for x
    x = 45,655,805.10/8,331.51
  6. Step 6: Final answer
    x = 5,479.89

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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.