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Finding the Fourth Proportional to 9,061.20, 13,591.80 and 4,384.80

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Solution

The fourth proportional to 9,061.20, 13,591.80 and 4,384.80 is: 6,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,061.20 : 13,591.80 = 4,384.80 : x
  2. Step 2: Convert to fraction form
    9,061.20/13,591.80 = 4,384.80/x
  3. Step 3: Cross multiply
    9,061.20x = 13,591.80 × 4,384.80
  4. Step 4: Simplify right side
    9,061.20x = 59,597,324.64
  5. Step 5: Solve for x
    x = 59,597,324.64/9,061.20
  6. Step 6: Final answer
    x = 6,577.20

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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.