Home / 10,889.52-15,023.80-7,531.08

Finding the Fourth Proportional to 10,889.52, 15,023.80 and 7,531.08

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Solution

The fourth proportional to 10,889.52, 15,023.80 and 7,531.08 is: 10,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.52 : 15,023.80 = 7,531.08 : x
  2. Step 2: Convert to fraction form
    10,889.52/15,023.80 = 7,531.08/x
  3. Step 3: Cross multiply
    10,889.52x = 15,023.80 × 7,531.08
  4. Step 4: Simplify right side
    10,889.52x = 113,145,439.70
  5. Step 5: Solve for x
    x = 113,145,439.70/10,889.52
  6. Step 6: Final answer
    x = 10,390.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.