Home / 18,306.77-27,428.80-9,992.62

Finding the Fourth Proportional to 18,306.77, 27,428.80 and 9,992.62

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Solution

The fourth proportional to 18,306.77, 27,428.80 and 9,992.62 is: 14,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.77 : 27,428.80 = 9,992.62 : x
  2. Step 2: Convert to fraction form
    18,306.77/27,428.80 = 9,992.62/x
  3. Step 3: Cross multiply
    18,306.77x = 27,428.80 × 9,992.62
  4. Step 4: Simplify right side
    18,306.77x = 274,085,575.46
  5. Step 5: Solve for x
    x = 274,085,575.46/18,306.77
  6. Step 6: Final answer
    x = 14,971.82

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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.