Home / 10,549.92-15,789.60-7,580.64

Finding the Fourth Proportional to 10,549.92, 15,789.60 and 7,580.64

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Solution

The fourth proportional to 10,549.92, 15,789.60 and 7,580.64 is: 11,345.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,549.92 : 15,789.60 = 7,580.64 : x
  2. Step 2: Convert to fraction form
    10,549.92/15,789.60 = 7,580.64/x
  3. Step 3: Cross multiply
    10,549.92x = 15,789.60 × 7,580.64
  4. Step 4: Simplify right side
    10,549.92x = 119,695,273.34
  5. Step 5: Solve for x
    x = 119,695,273.34/10,549.92
  6. Step 6: Final answer
    x = 11,345.61

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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.