Home / 8,711.28-13,042.08-5,783.76

Finding the Fourth Proportional to 8,711.28, 13,042.08 and 5,783.76

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Solution

The fourth proportional to 8,711.28, 13,042.08 and 5,783.76 is: 8,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.28 : 13,042.08 = 5,783.76 : x
  2. Step 2: Convert to fraction form
    8,711.28/13,042.08 = 5,783.76/x
  3. Step 3: Cross multiply
    8,711.28x = 13,042.08 × 5,783.76
  4. Step 4: Simplify right side
    8,711.28x = 75,432,260.62
  5. Step 5: Solve for x
    x = 75,432,260.62/8,711.28
  6. Step 6: Final answer
    x = 8,659.15

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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.