Home / 12,301.68-18,451.86-3,981.48

Finding the Fourth Proportional to 12,301.68, 18,451.86 and 3,981.48

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Solution

The fourth proportional to 12,301.68, 18,451.86 and 3,981.48 is: 5,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.68 : 18,451.86 = 3,981.48 : x
  2. Step 2: Convert to fraction form
    12,301.68/18,451.86 = 3,981.48/x
  3. Step 3: Cross multiply
    12,301.68x = 18,451.86 × 3,981.48
  4. Step 4: Simplify right side
    12,301.68x = 73,465,711.55
  5. Step 5: Solve for x
    x = 73,465,711.55/12,301.68
  6. Step 6: Final answer
    x = 5,972.01

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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.