Home / 18,109.61-27,166.39-8,747.83

Finding the Fourth Proportional to 18,109.61, 27,166.39 and 8,747.83

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Solution

The fourth proportional to 18,109.61, 27,166.39 and 8,747.83 is: 13,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.61 : 27,166.39 = 8,747.83 : x
  2. Step 2: Convert to fraction form
    18,109.61/27,166.39 = 8,747.83/x
  3. Step 3: Cross multiply
    18,109.61x = 27,166.39 × 8,747.83
  4. Step 4: Simplify right side
    18,109.61x = 237,646,973.52
  5. Step 5: Solve for x
    x = 237,646,973.52/18,109.61
  6. Step 6: Final answer
    x = 13,122.70

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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.