Home / 13,446.38-20,154.62-10,148.78

Finding the Fourth Proportional to 13,446.38, 20,154.62 and 10,148.78

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Solution

The fourth proportional to 13,446.38, 20,154.62 and 10,148.78 is: 15,211.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.38 : 20,154.62 = 10,148.78 : x
  2. Step 2: Convert to fraction form
    13,446.38/20,154.62 = 10,148.78/x
  3. Step 3: Cross multiply
    13,446.38x = 20,154.62 × 10,148.78
  4. Step 4: Simplify right side
    13,446.38x = 204,544,804.36
  5. Step 5: Solve for x
    x = 204,544,804.36/13,446.38
  6. Step 6: Final answer
    x = 15,211.89

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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.