Home / 15,020.80-22,516.20-7,109.22

Finding the Fourth Proportional to 15,020.80, 22,516.20 and 7,109.22

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Solution

The fourth proportional to 15,020.80, 22,516.20 and 7,109.22 is: 10,656.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,020.80 : 22,516.20 = 7,109.22 : x
  2. Step 2: Convert to fraction form
    15,020.80/22,516.20 = 7,109.22/x
  3. Step 3: Cross multiply
    15,020.80x = 22,516.20 × 7,109.22
  4. Step 4: Simplify right side
    15,020.80x = 160,072,619.36
  5. Step 5: Solve for x
    x = 160,072,619.36/15,020.80
  6. Step 6: Final answer
    x = 10,656.73

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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.