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Finding the Fourth Proportional to 8,666.71, 13,000.89 and 2,426.74

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Solution

The fourth proportional to 8,666.71, 13,000.89 and 2,426.74 is: 3,640.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.71 : 13,000.89 = 2,426.74 : x
  2. Step 2: Convert to fraction form
    8,666.71/13,000.89 = 2,426.74/x
  3. Step 3: Cross multiply
    8,666.71x = 13,000.89 × 2,426.74
  4. Step 4: Simplify right side
    8,666.71x = 31,549,779.80
  5. Step 5: Solve for x
    x = 31,549,779.80/8,666.71
  6. Step 6: Final answer
    x = 3,640.34

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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.