Home / 18,943.09-28,422.83-10,167.76

Finding the Fourth Proportional to 18,943.09, 28,422.83 and 10,167.76

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Solution

The fourth proportional to 18,943.09, 28,422.83 and 10,167.76 is: 15,256.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.09 : 28,422.83 = 10,167.76 : x
  2. Step 2: Convert to fraction form
    18,943.09/28,422.83 = 10,167.76/x
  3. Step 3: Cross multiply
    18,943.09x = 28,422.83 × 10,167.76
  4. Step 4: Simplify right side
    18,943.09x = 288,996,513.96
  5. Step 5: Solve for x
    x = 288,996,513.96/18,943.09
  6. Step 6: Final answer
    x = 15,256.04

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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.