Home / 10,963.34-15,128.25-6,487.28

Finding the Fourth Proportional to 10,963.34, 15,128.25 and 6,487.28

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Solution

The fourth proportional to 10,963.34, 15,128.25 and 6,487.28 is: 8,951.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.34 : 15,128.25 = 6,487.28 : x
  2. Step 2: Convert to fraction form
    10,963.34/15,128.25 = 6,487.28/x
  3. Step 3: Cross multiply
    10,963.34x = 15,128.25 × 6,487.28
  4. Step 4: Simplify right side
    10,963.34x = 98,141,207.15
  5. Step 5: Solve for x
    x = 98,141,207.15/10,963.34
  6. Step 6: Final answer
    x = 8,951.76

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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.