Home / 18,221.76-27,335.40-6,537.72

Finding the Fourth Proportional to 18,221.76, 27,335.40 and 6,537.72

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Solution

The fourth proportional to 18,221.76, 27,335.40 and 6,537.72 is: 9,807.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.76 : 27,335.40 = 6,537.72 : x
  2. Step 2: Convert to fraction form
    18,221.76/27,335.40 = 6,537.72/x
  3. Step 3: Cross multiply
    18,221.76x = 27,335.40 × 6,537.72
  4. Step 4: Simplify right side
    18,221.76x = 178,711,191.29
  5. Step 5: Solve for x
    x = 178,711,191.29/18,221.76
  6. Step 6: Final answer
    x = 9,807.57

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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.