Home / 12,550.72-17,320.16-6,961.92

Finding the Fourth Proportional to 12,550.72, 17,320.16 and 6,961.92

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Solution

The fourth proportional to 12,550.72, 17,320.16 and 6,961.92 is: 9,607.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.72 : 17,320.16 = 6,961.92 : x
  2. Step 2: Convert to fraction form
    12,550.72/17,320.16 = 6,961.92/x
  3. Step 3: Cross multiply
    12,550.72x = 17,320.16 × 6,961.92
  4. Step 4: Simplify right side
    12,550.72x = 120,581,568.31
  5. Step 5: Solve for x
    x = 120,581,568.31/12,550.72
  6. Step 6: Final answer
    x = 9,607.54

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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.