Home / 11,168.86-16,753.30-5,307.70

Finding the Fourth Proportional to 11,168.86, 16,753.30 and 5,307.70

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Solution

The fourth proportional to 11,168.86, 16,753.30 and 5,307.70 is: 7,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.86 : 16,753.30 = 5,307.70 : x
  2. Step 2: Convert to fraction form
    11,168.86/16,753.30 = 5,307.70/x
  3. Step 3: Cross multiply
    11,168.86x = 16,753.30 × 5,307.70
  4. Step 4: Simplify right side
    11,168.86x = 88,921,490.41
  5. Step 5: Solve for x
    x = 88,921,490.41/11,168.86
  6. Step 6: Final answer
    x = 7,961.55

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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.