Home / 10,535.62-15,769.14-7,761.20

Finding the Fourth Proportional to 10,535.62, 15,769.14 and 7,761.20

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Solution

The fourth proportional to 10,535.62, 15,769.14 and 7,761.20 is: 11,616.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,535.62 : 15,769.14 = 7,761.20 : x
  2. Step 2: Convert to fraction form
    10,535.62/15,769.14 = 7,761.20/x
  3. Step 3: Cross multiply
    10,535.62x = 15,769.14 × 7,761.20
  4. Step 4: Simplify right side
    10,535.62x = 122,387,449.37
  5. Step 5: Solve for x
    x = 122,387,449.37/10,535.62
  6. Step 6: Final answer
    x = 11,616.54

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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.