Home / 10,340.76-15,505.92-6,128.28

Finding the Fourth Proportional to 10,340.76, 15,505.92 and 6,128.28

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Solution

The fourth proportional to 10,340.76, 15,505.92 and 6,128.28 is: 9,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.76 : 15,505.92 = 6,128.28 : x
  2. Step 2: Convert to fraction form
    10,340.76/15,505.92 = 6,128.28/x
  3. Step 3: Cross multiply
    10,340.76x = 15,505.92 × 6,128.28
  4. Step 4: Simplify right side
    10,340.76x = 95,024,619.42
  5. Step 5: Solve for x
    x = 95,024,619.42/10,340.76
  6. Step 6: Final answer
    x = 9,189.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.