Home / 8,711.08-12,018.18-4,982.92

Finding the Fourth Proportional to 8,711.08, 12,018.18 and 4,982.92

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Solution

The fourth proportional to 8,711.08, 12,018.18 and 4,982.92 is: 6,874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.08 : 12,018.18 = 4,982.92 : x
  2. Step 2: Convert to fraction form
    8,711.08/12,018.18 = 4,982.92/x
  3. Step 3: Cross multiply
    8,711.08x = 12,018.18 × 4,982.92
  4. Step 4: Simplify right side
    8,711.08x = 59,885,629.49
  5. Step 5: Solve for x
    x = 59,885,629.49/8,711.08
  6. Step 6: Final answer
    x = 6,874.65

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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.