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Finding the Fourth Proportional to 8,666.53, 13,000.70 and 2,744.23

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Solution

The fourth proportional to 8,666.53, 13,000.70 and 2,744.23 is: 4,116.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.53 : 13,000.70 = 2,744.23 : x
  2. Step 2: Convert to fraction form
    8,666.53/13,000.70 = 2,744.23/x
  3. Step 3: Cross multiply
    8,666.53x = 13,000.70 × 2,744.23
  4. Step 4: Simplify right side
    8,666.53x = 35,676,845.96
  5. Step 5: Solve for x
    x = 35,676,845.96/8,666.53
  6. Step 6: Final answer
    x = 4,116.63

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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.