Home / 10,963.22-15,129.38-6,486.86

Finding the Fourth Proportional to 10,963.22, 15,129.38 and 6,486.86

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Solution

The fourth proportional to 10,963.22, 15,129.38 and 6,486.86 is: 8,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.22 : 15,129.38 = 6,486.86 : x
  2. Step 2: Convert to fraction form
    10,963.22/15,129.38 = 6,486.86/x
  3. Step 3: Cross multiply
    10,963.22x = 15,129.38 × 6,486.86
  4. Step 4: Simplify right side
    10,963.22x = 98,142,110.52
  5. Step 5: Solve for x
    x = 98,142,110.52/10,963.22
  6. Step 6: Final answer
    x = 8,951.95

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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.