Home / 18,959.28-26,159.79-11,000.49

Finding the Fourth Proportional to 18,959.28, 26,159.79 and 11,000.49

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Solution

The fourth proportional to 18,959.28, 26,159.79 and 11,000.49 is: 15,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959.28 : 26,159.79 = 11,000.49 : x
  2. Step 2: Convert to fraction form
    18,959.28/26,159.79 = 11,000.49/x
  3. Step 3: Cross multiply
    18,959.28x = 26,159.79 × 11,000.49
  4. Step 4: Simplify right side
    18,959.28x = 287,770,508.30
  5. Step 5: Solve for x
    x = 287,770,508.30/18,959.28
  6. Step 6: Final answer
    x = 15,178.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.