Home / 15,022.80-22,519.20-7,111.22

Finding the Fourth Proportional to 15,022.80, 22,519.20 and 7,111.22

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Solution

The fourth proportional to 15,022.80, 22,519.20 and 7,111.22 is: 10,659.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.80 : 22,519.20 = 7,111.22 : x
  2. Step 2: Convert to fraction form
    15,022.80/22,519.20 = 7,111.22/x
  3. Step 3: Cross multiply
    15,022.80x = 22,519.20 × 7,111.22
  4. Step 4: Simplify right side
    15,022.80x = 160,138,985.42
  5. Step 5: Solve for x
    x = 160,138,985.42/15,022.80
  6. Step 6: Final answer
    x = 10,659.73

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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.