Home / 12,301.31-18,452.36-3,981.39

Finding the Fourth Proportional to 12,301.31, 18,452.36 and 3,981.39

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Solution

The fourth proportional to 12,301.31, 18,452.36 and 3,981.39 is: 5,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.31 : 18,452.36 = 3,981.39 : x
  2. Step 2: Convert to fraction form
    12,301.31/18,452.36 = 3,981.39/x
  3. Step 3: Cross multiply
    12,301.31x = 18,452.36 × 3,981.39
  4. Step 4: Simplify right side
    12,301.31x = 73,466,041.58
  5. Step 5: Solve for x
    x = 73,466,041.58/12,301.31
  6. Step 6: Final answer
    x = 5,972.21

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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.