Home / 10,901.52-15,040.22-7,126.86

Finding the Fourth Proportional to 10,901.52, 15,040.22 and 7,126.86

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Solution

The fourth proportional to 10,901.52, 15,040.22 and 7,126.86 is: 9,832.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,901.52 : 15,040.22 = 7,126.86 : x
  2. Step 2: Convert to fraction form
    10,901.52/15,040.22 = 7,126.86/x
  3. Step 3: Cross multiply
    10,901.52x = 15,040.22 × 7,126.86
  4. Step 4: Simplify right side
    10,901.52x = 107,189,542.31
  5. Step 5: Solve for x
    x = 107,189,542.31/10,901.52
  6. Step 6: Final answer
    x = 9,832.53

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1.5x scale

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.