Home / 18,306.20-27,427.96-9,992.05

Finding the Fourth Proportional to 18,306.20, 27,427.96 and 9,992.05

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Solution

The fourth proportional to 18,306.20, 27,427.96 and 9,992.05 is: 14,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.20 : 27,427.96 = 9,992.05 : x
  2. Step 2: Convert to fraction form
    18,306.20/27,427.96 = 9,992.05/x
  3. Step 3: Cross multiply
    18,306.20x = 27,427.96 × 9,992.05
  4. Step 4: Simplify right side
    18,306.20x = 274,061,547.72
  5. Step 5: Solve for x
    x = 274,061,547.72/18,306.20
  6. Step 6: Final answer
    x = 14,970.97

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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.