Home / 12,997.86-17,937.20-7,029.65

Finding the Fourth Proportional to 12,997.86, 17,937.20 and 7,029.65

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Solution

The fourth proportional to 12,997.86, 17,937.20 and 7,029.65 is: 9,700.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.86 : 17,937.20 = 7,029.65 : x
  2. Step 2: Convert to fraction form
    12,997.86/17,937.20 = 7,029.65/x
  3. Step 3: Cross multiply
    12,997.86x = 17,937.20 × 7,029.65
  4. Step 4: Simplify right side
    12,997.86x = 126,092,113.15
  5. Step 5: Solve for x
    x = 126,092,113.15/12,997.86
  6. Step 6: Final answer
    x = 9,700.99

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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.