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Finding the Fourth Proportional to 8,744.18, 13,114.65 and 5,619.20

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Solution

The fourth proportional to 8,744.18, 13,114.65 and 5,619.20 is: 8,427.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,744.18 : 13,114.65 = 5,619.20 : x
  2. Step 2: Convert to fraction form
    8,744.18/13,114.65 = 5,619.20/x
  3. Step 3: Cross multiply
    8,744.18x = 13,114.65 × 5,619.20
  4. Step 4: Simplify right side
    8,744.18x = 73,693,841.28
  5. Step 5: Solve for x
    x = 73,693,841.28/8,744.18
  6. Step 6: Final answer
    x = 8,427.76

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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.