Home / 11,685.38-16,125.60-6,380.24

Finding the Fourth Proportional to 11,685.38, 16,125.60 and 6,380.24

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Solution

The fourth proportional to 11,685.38, 16,125.60 and 6,380.24 is: 8,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.38 : 16,125.60 = 6,380.24 : x
  2. Step 2: Convert to fraction form
    11,685.38/16,125.60 = 6,380.24/x
  3. Step 3: Cross multiply
    11,685.38x = 16,125.60 × 6,380.24
  4. Step 4: Simplify right side
    11,685.38x = 102,885,117.52
  5. Step 5: Solve for x
    x = 102,885,117.52/11,685.38
  6. Step 6: Final answer
    x = 8,804.61

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Half scale
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Double scale
Find fourth proportional to 11,686.38, 16,126.98 and 6,381.24
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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.