Home / 15,930.04-21,984.86-8,761.22

Finding the Fourth Proportional to 15,930.04, 21,984.86 and 8,761.22

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Solution

The fourth proportional to 15,930.04, 21,984.86 and 8,761.22 is: 12,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,930.04 : 21,984.86 = 8,761.22 : x
  2. Step 2: Convert to fraction form
    15,930.04/21,984.86 = 8,761.22/x
  3. Step 3: Cross multiply
    15,930.04x = 21,984.86 × 8,761.22
  4. Step 4: Simplify right side
    15,930.04x = 192,614,082.62
  5. Step 5: Solve for x
    x = 192,614,082.62/15,930.04
  6. Step 6: Final answer
    x = 12,091.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.