Home / 11,311.76-16,960.80-5,070.61

Finding the Fourth Proportional to 11,311.76, 16,960.80 and 5,070.61

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Solution

The fourth proportional to 11,311.76, 16,960.80 and 5,070.61 is: 7,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.76 : 16,960.80 = 5,070.61 : x
  2. Step 2: Convert to fraction form
    11,311.76/16,960.80 = 5,070.61/x
  3. Step 3: Cross multiply
    11,311.76x = 16,960.80 × 5,070.61
  4. Step 4: Simplify right side
    11,311.76x = 86,001,642.30
  5. Step 5: Solve for x
    x = 86,001,642.30/11,311.76
  6. Step 6: Final answer
    x = 7,602.85

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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.