Home / 18,458.49-27,691.79-5,979.76

Finding the Fourth Proportional to 18,458.49, 27,691.79 and 5,979.76

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Solution

The fourth proportional to 18,458.49, 27,691.79 and 5,979.76 is: 8,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.49 : 27,691.79 = 5,979.76 : x
  2. Step 2: Convert to fraction form
    18,458.49/27,691.79 = 5,979.76/x
  3. Step 3: Cross multiply
    18,458.49x = 27,691.79 × 5,979.76
  4. Step 4: Simplify right side
    18,458.49x = 165,590,258.17
  5. Step 5: Solve for x
    x = 165,590,258.17/18,458.49
  6. Step 6: Final answer
    x = 8,970.95

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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.