Home / 8,663.30-12,992.06-2,818.55

Finding the Fourth Proportional to 8,663.30, 12,992.06 and 2,818.55

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Solution

The fourth proportional to 8,663.30, 12,992.06 and 2,818.55 is: 4,226.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.30 : 12,992.06 = 2,818.55 : x
  2. Step 2: Convert to fraction form
    8,663.30/12,992.06 = 2,818.55/x
  3. Step 3: Cross multiply
    8,663.30x = 12,992.06 × 2,818.55
  4. Step 4: Simplify right side
    8,663.30x = 36,618,737.16
  5. Step 5: Solve for x
    x = 36,618,737.16/8,663.30
  6. Step 6: Final answer
    x = 4,226.88

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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.