Home / 8,711.28-12,021.79-4,732.62

Finding the Fourth Proportional to 8,711.28, 12,021.79 and 4,732.62

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Solution

The fourth proportional to 8,711.28, 12,021.79 and 4,732.62 is: 6,531.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.28 : 12,021.79 = 4,732.62 : x
  2. Step 2: Convert to fraction form
    8,711.28/12,021.79 = 4,732.62/x
  3. Step 3: Cross multiply
    8,711.28x = 12,021.79 × 4,732.62
  4. Step 4: Simplify right side
    8,711.28x = 56,894,563.79
  5. Step 5: Solve for x
    x = 56,894,563.79/8,711.28
  6. Step 6: Final answer
    x = 6,531.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.