Home / 18,306.42-27,428.28-9,992.28

Finding the Fourth Proportional to 18,306.42, 27,428.28 and 9,992.28

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Solution

The fourth proportional to 18,306.42, 27,428.28 and 9,992.28 is: 14,971.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.42 : 27,428.28 = 9,992.28 : x
  2. Step 2: Convert to fraction form
    18,306.42/27,428.28 = 9,992.28/x
  3. Step 3: Cross multiply
    18,306.42x = 27,428.28 × 9,992.28
  4. Step 4: Simplify right side
    18,306.42x = 274,071,053.68
  5. Step 5: Solve for x
    x = 274,071,053.68/18,306.42
  6. Step 6: Final answer
    x = 14,971.31

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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.