Home / 15,011.20-22,516.80-9,179.20

Finding the Fourth Proportional to 15,011.20, 22,516.80 and 9,179.20

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Solution

The fourth proportional to 15,011.20, 22,516.80 and 9,179.20 is: 13,768.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.20 : 22,516.80 = 9,179.20 : x
  2. Step 2: Convert to fraction form
    15,011.20/22,516.80 = 9,179.20/x
  3. Step 3: Cross multiply
    15,011.20x = 22,516.80 × 9,179.20
  4. Step 4: Simplify right side
    15,011.20x = 206,686,210.56
  5. Step 5: Solve for x
    x = 206,686,210.56/15,011.20
  6. Step 6: Final answer
    x = 13,768.80

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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.