Home / 12,246.90-18,287.17-11,914.75

Finding the Fourth Proportional to 12,246.90, 18,287.17 and 11,914.75

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Solution

The fourth proportional to 12,246.90, 18,287.17 and 11,914.75 is: 17,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246.90 : 18,287.17 = 11,914.75 : x
  2. Step 2: Convert to fraction form
    12,246.90/18,287.17 = 11,914.75/x
  3. Step 3: Cross multiply
    12,246.90x = 18,287.17 × 11,914.75
  4. Step 4: Simplify right side
    12,246.90x = 217,886,948.96
  5. Step 5: Solve for x
    x = 217,886,948.96/12,246.90
  6. Step 6: Final answer
    x = 17,791.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.