Home / 11,129.24-16,669.60-5,572.90

Finding the Fourth Proportional to 11,129.24, 16,669.60 and 5,572.90

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Solution

The fourth proportional to 11,129.24, 16,669.60 and 5,572.90 is: 8,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.24 : 16,669.60 = 5,572.90 : x
  2. Step 2: Convert to fraction form
    11,129.24/16,669.60 = 5,572.90/x
  3. Step 3: Cross multiply
    11,129.24x = 16,669.60 × 5,572.90
  4. Step 4: Simplify right side
    11,129.24x = 92,897,979.13
  5. Step 5: Solve for x
    x = 92,897,979.13/11,129.24
  6. Step 6: Final answer
    x = 8,347.20

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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.