Home / 18,693.19-28,035.45-5,542.39

Finding the Fourth Proportional to 18,693.19, 28,035.45 and 5,542.39

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Solution

The fourth proportional to 18,693.19, 28,035.45 and 5,542.39 is: 8,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.19 : 28,035.45 = 5,542.39 : x
  2. Step 2: Convert to fraction form
    18,693.19/28,035.45 = 5,542.39/x
  3. Step 3: Cross multiply
    18,693.19x = 28,035.45 × 5,542.39
  4. Step 4: Simplify right side
    18,693.19x = 155,383,397.73
  5. Step 5: Solve for x
    x = 155,383,397.73/18,693.19
  6. Step 6: Final answer
    x = 8,312.30

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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.