Home / 15,335.71-22,981.78-11,812.39

Finding the Fourth Proportional to 15,335.71, 22,981.78 and 11,812.39

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Solution

The fourth proportional to 15,335.71, 22,981.78 and 11,812.39 is: 17,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,335.71 : 22,981.78 = 11,812.39 : x
  2. Step 2: Convert to fraction form
    15,335.71/22,981.78 = 11,812.39/x
  3. Step 3: Cross multiply
    15,335.71x = 22,981.78 × 11,812.39
  4. Step 4: Simplify right side
    15,335.71x = 271,469,748.25
  5. Step 5: Solve for x
    x = 271,469,748.25/15,335.71
  6. Step 6: Final answer
    x = 17,701.81

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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.