Home / 10,963.76-15,128.52-6,487.76

Finding the Fourth Proportional to 10,963.76, 15,128.52 and 6,487.76

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Solution

The fourth proportional to 10,963.76, 15,128.52 and 6,487.76 is: 8,952.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.76 : 15,128.52 = 6,487.76 : x
  2. Step 2: Convert to fraction form
    10,963.76/15,128.52 = 6,487.76/x
  3. Step 3: Cross multiply
    10,963.76x = 15,128.52 × 6,487.76
  4. Step 4: Simplify right side
    10,963.76x = 98,150,206.92
  5. Step 5: Solve for x
    x = 98,150,206.92/10,963.76
  6. Step 6: Final answer
    x = 8,952.24

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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.