Home / 9,013.20-13,519.80-3,169.20

Finding the Fourth Proportional to 9,013.20, 13,519.80 and 3,169.20

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Solution

The fourth proportional to 9,013.20, 13,519.80 and 3,169.20 is: 4,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.20 : 13,519.80 = 3,169.20 : x
  2. Step 2: Convert to fraction form
    9,013.20/13,519.80 = 3,169.20/x
  3. Step 3: Cross multiply
    9,013.20x = 13,519.80 × 3,169.20
  4. Step 4: Simplify right side
    9,013.20x = 42,846,950.16
  5. Step 5: Solve for x
    x = 42,846,950.16/9,013.20
  6. Step 6: Final answer
    x = 4,753.80

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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.