Home / 10,729.77-16,089.39-4,487.91

Finding the Fourth Proportional to 10,729.77, 16,089.39 and 4,487.91

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Solution

The fourth proportional to 10,729.77, 16,089.39 and 4,487.91 is: 6,729.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,729.77 : 16,089.39 = 4,487.91 : x
  2. Step 2: Convert to fraction form
    10,729.77/16,089.39 = 4,487.91/x
  3. Step 3: Cross multiply
    10,729.77x = 16,089.39 × 4,487.91
  4. Step 4: Simplify right side
    10,729.77x = 72,207,734.27
  5. Step 5: Solve for x
    x = 72,207,734.27/10,729.77
  6. Step 6: Final answer
    x = 6,729.66

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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.