Home / 15,128.76-22,672.14-11,427.96

Finding the Fourth Proportional to 15,128.76, 22,672.14 and 11,427.96

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Solution

The fourth proportional to 15,128.76, 22,672.14 and 11,427.96 is: 17,126.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.76 : 22,672.14 = 11,427.96 : x
  2. Step 2: Convert to fraction form
    15,128.76/22,672.14 = 11,427.96/x
  3. Step 3: Cross multiply
    15,128.76x = 22,672.14 × 11,427.96
  4. Step 4: Simplify right side
    15,128.76x = 259,096,309.03
  5. Step 5: Solve for x
    x = 259,096,309.03/15,128.76
  6. Step 6: Final answer
    x = 17,126.08

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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.