Home / 18,815.76-25,959.84-10,856.94

Finding the Fourth Proportional to 18,815.76, 25,959.84 and 10,856.94

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Solution

The fourth proportional to 18,815.76, 25,959.84 and 10,856.94 is: 14,979.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.76 : 25,959.84 = 10,856.94 : x
  2. Step 2: Convert to fraction form
    18,815.76/25,959.84 = 10,856.94/x
  3. Step 3: Cross multiply
    18,815.76x = 25,959.84 × 10,856.94
  4. Step 4: Simplify right side
    18,815.76x = 281,844,425.29
  5. Step 5: Solve for x
    x = 281,844,425.29/18,815.76
  6. Step 6: Final answer
    x = 14,979.17

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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.