Home / 11,937.18-16,471.99-6,630.78

Finding the Fourth Proportional to 11,937.18, 16,471.99 and 6,630.78

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Solution

The fourth proportional to 11,937.18, 16,471.99 and 6,630.78 is: 9,149.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,937.18 : 16,471.99 = 6,630.78 : x
  2. Step 2: Convert to fraction form
    11,937.18/16,471.99 = 6,630.78/x
  3. Step 3: Cross multiply
    11,937.18x = 16,471.99 × 6,630.78
  4. Step 4: Simplify right side
    11,937.18x = 109,222,141.85
  5. Step 5: Solve for x
    x = 109,222,141.85/11,937.18
  6. Step 6: Final answer
    x = 9,149.74

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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.