Home / 18,743.72-28,117.22-7,651.17

Finding the Fourth Proportional to 18,743.72, 28,117.22 and 7,651.17

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Solution

The fourth proportional to 18,743.72, 28,117.22 and 7,651.17 is: 11,477.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.72 : 28,117.22 = 7,651.17 : x
  2. Step 2: Convert to fraction form
    18,743.72/28,117.22 = 7,651.17/x
  3. Step 3: Cross multiply
    18,743.72x = 28,117.22 × 7,651.17
  4. Step 4: Simplify right side
    18,743.72x = 215,129,591.89
  5. Step 5: Solve for x
    x = 215,129,591.89/18,743.72
  6. Step 6: Final answer
    x = 11,477.43

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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.