Home / 8,423.28-12,634.56-2,877.12

Finding the Fourth Proportional to 8,423.28, 12,634.56 and 2,877.12

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Solution

The fourth proportional to 8,423.28, 12,634.56 and 2,877.12 is: 4,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.28 : 12,634.56 = 2,877.12 : x
  2. Step 2: Convert to fraction form
    8,423.28/12,634.56 = 2,877.12/x
  3. Step 3: Cross multiply
    8,423.28x = 12,634.56 × 2,877.12
  4. Step 4: Simplify right side
    8,423.28x = 36,351,145.27
  5. Step 5: Solve for x
    x = 36,351,145.27/8,423.28
  6. Step 6: Final answer
    x = 4,315.56

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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.