Home / 12,452.35-18,678.71-4,020.43

Finding the Fourth Proportional to 12,452.35, 18,678.71 and 4,020.43

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Solution

The fourth proportional to 12,452.35, 18,678.71 and 4,020.43 is: 6,030.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.35 : 18,678.71 = 4,020.43 : x
  2. Step 2: Convert to fraction form
    12,452.35/18,678.71 = 4,020.43/x
  3. Step 3: Cross multiply
    12,452.35x = 18,678.71 × 4,020.43
  4. Step 4: Simplify right side
    12,452.35x = 75,096,425.94
  5. Step 5: Solve for x
    x = 75,096,425.94/12,452.35
  6. Step 6: Final answer
    x = 6,030.70

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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.