Home / 15,330.20-23,009.27-7,939.98

Finding the Fourth Proportional to 15,330.20, 23,009.27 and 7,939.98

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Solution

The fourth proportional to 15,330.20, 23,009.27 and 7,939.98 is: 11,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,330.20 : 23,009.27 = 7,939.98 : x
  2. Step 2: Convert to fraction form
    15,330.20/23,009.27 = 7,939.98/x
  3. Step 3: Cross multiply
    15,330.20x = 23,009.27 × 7,939.98
  4. Step 4: Simplify right side
    15,330.20x = 182,693,103.91
  5. Step 5: Solve for x
    x = 182,693,103.91/15,330.20
  6. Step 6: Final answer
    x = 11,917.21

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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.