Home / 18,312.12-27,446.20-9,431.62

Finding the Fourth Proportional to 18,312.12, 27,446.20 and 9,431.62

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Solution

The fourth proportional to 18,312.12, 27,446.20 and 9,431.62 is: 14,136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.12 : 27,446.20 = 9,431.62 : x
  2. Step 2: Convert to fraction form
    18,312.12/27,446.20 = 9,431.62/x
  3. Step 3: Cross multiply
    18,312.12x = 27,446.20 × 9,431.62
  4. Step 4: Simplify right side
    18,312.12x = 258,862,081.69
  5. Step 5: Solve for x
    x = 258,862,081.69/18,312.12
  6. Step 6: Final answer
    x = 14,136.11

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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.