Home / 12,229.12-16,869.75-7,744.96

Finding the Fourth Proportional to 12,229.12, 16,869.75 and 7,744.96

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Solution

The fourth proportional to 12,229.12, 16,869.75 and 7,744.96 is: 10,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229.12 : 16,869.75 = 7,744.96 : x
  2. Step 2: Convert to fraction form
    12,229.12/16,869.75 = 7,744.96/x
  3. Step 3: Cross multiply
    12,229.12x = 16,869.75 × 7,744.96
  4. Step 4: Simplify right side
    12,229.12x = 130,655,538.96
  5. Step 5: Solve for x
    x = 130,655,538.96/12,229.12
  6. Step 6: Final answer
    x = 10,683.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.