Home / 8,124.76-12,190.38-2,931.04

Finding the Fourth Proportional to 8,124.76, 12,190.38 and 2,931.04

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Solution

The fourth proportional to 8,124.76, 12,190.38 and 2,931.04 is: 4,397.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.76 : 12,190.38 = 2,931.04 : x
  2. Step 2: Convert to fraction form
    8,124.76/12,190.38 = 2,931.04/x
  3. Step 3: Cross multiply
    8,124.76x = 12,190.38 × 2,931.04
  4. Step 4: Simplify right side
    8,124.76x = 35,730,491.40
  5. Step 5: Solve for x
    x = 35,730,491.40/8,124.76
  6. Step 6: Final answer
    x = 4,397.73

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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.