Home / 12,446.75-18,667.18-3,561.81

Finding the Fourth Proportional to 12,446.75, 18,667.18 and 3,561.81

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Solution

The fourth proportional to 12,446.75, 18,667.18 and 3,561.81 is: 5,341.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.75 : 18,667.18 = 3,561.81 : x
  2. Step 2: Convert to fraction form
    12,446.75/18,667.18 = 3,561.81/x
  3. Step 3: Cross multiply
    12,446.75x = 18,667.18 × 3,561.81
  4. Step 4: Simplify right side
    12,446.75x = 66,488,948.40
  5. Step 5: Solve for x
    x = 66,488,948.40/12,446.75
  6. Step 6: Final answer
    x = 5,341.87

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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.