Home / 8,117.46-12,176.82-2,851.92

Finding the Fourth Proportional to 8,117.46, 12,176.82 and 2,851.92

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Solution

The fourth proportional to 8,117.46, 12,176.82 and 2,851.92 is: 4,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.46 : 12,176.82 = 2,851.92 : x
  2. Step 2: Convert to fraction form
    8,117.46/12,176.82 = 2,851.92/x
  3. Step 3: Cross multiply
    8,117.46x = 12,176.82 × 2,851.92
  4. Step 4: Simplify right side
    8,117.46x = 34,727,316.49
  5. Step 5: Solve for x
    x = 34,727,316.49/8,117.46
  6. Step 6: Final answer
    x = 4,278.10

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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.