Home / 18,768.52-28,139.80-9,398.44

Finding the Fourth Proportional to 18,768.52, 28,139.80 and 9,398.44

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Solution

The fourth proportional to 18,768.52, 28,139.80 and 9,398.44 is: 14,091.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.52 : 28,139.80 = 9,398.44 : x
  2. Step 2: Convert to fraction form
    18,768.52/28,139.80 = 9,398.44/x
  3. Step 3: Cross multiply
    18,768.52x = 28,139.80 × 9,398.44
  4. Step 4: Simplify right side
    18,768.52x = 264,470,221.91
  5. Step 5: Solve for x
    x = 264,470,221.91/18,768.52
  6. Step 6: Final answer
    x = 14,091.16

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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.