Home / 15,022.32-22,519.53-7,128.54

Finding the Fourth Proportional to 15,022.32, 22,519.53 and 7,128.54

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Solution

The fourth proportional to 15,022.32, 22,519.53 and 7,128.54 is: 10,686.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.32 : 22,519.53 = 7,128.54 : x
  2. Step 2: Convert to fraction form
    15,022.32/22,519.53 = 7,128.54/x
  3. Step 3: Cross multiply
    15,022.32x = 22,519.53 × 7,128.54
  4. Step 4: Simplify right side
    15,022.32x = 160,531,370.39
  5. Step 5: Solve for x
    x = 160,531,370.39/15,022.32
  6. Step 6: Final answer
    x = 10,686.19

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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.