Home / 8,527.20-12,787.56-4,080.30

Finding the Fourth Proportional to 8,527.20, 12,787.56 and 4,080.30

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Solution

The fourth proportional to 8,527.20, 12,787.56 and 4,080.30 is: 6,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,527.20 : 12,787.56 = 4,080.30 : x
  2. Step 2: Convert to fraction form
    8,527.20/12,787.56 = 4,080.30/x
  3. Step 3: Cross multiply
    8,527.20x = 12,787.56 × 4,080.30
  4. Step 4: Simplify right side
    8,527.20x = 52,177,081.07
  5. Step 5: Solve for x
    x = 52,177,081.07/8,527.20
  6. Step 6: Final answer
    x = 6,118.90

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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.