Home / 10,356.80-15,535.36-2,961.12

Finding the Fourth Proportional to 10,356.80, 15,535.36 and 2,961.12

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Solution

The fourth proportional to 10,356.80, 15,535.36 and 2,961.12 is: 4,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.80 : 15,535.36 = 2,961.12 : x
  2. Step 2: Convert to fraction form
    10,356.80/15,535.36 = 2,961.12/x
  3. Step 3: Cross multiply
    10,356.80x = 15,535.36 × 2,961.12
  4. Step 4: Simplify right side
    10,356.80x = 46,002,065.20
  5. Step 5: Solve for x
    x = 46,002,065.20/10,356.80
  6. Step 6: Final answer
    x = 4,441.73

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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.