Home / 9,320.80-13,997.40-9,029.20

Finding the Fourth Proportional to 9,320.80, 13,997.40 and 9,029.20

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Solution

The fourth proportional to 9,320.80, 13,997.40 and 9,029.20 is: 13,559.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.80 : 13,997.40 = 9,029.20 : x
  2. Step 2: Convert to fraction form
    9,320.80/13,997.40 = 9,029.20/x
  3. Step 3: Cross multiply
    9,320.80x = 13,997.40 × 9,029.20
  4. Step 4: Simplify right side
    9,320.80x = 126,385,324.08
  5. Step 5: Solve for x
    x = 126,385,324.08/9,320.80
  6. Step 6: Final answer
    x = 13,559.49

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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.