Home / 10,578.92-15,869.46-2,788.28

Finding the Fourth Proportional to 10,578.92, 15,869.46 and 2,788.28

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Solution

The fourth proportional to 10,578.92, 15,869.46 and 2,788.28 is: 4,182.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,578.92 : 15,869.46 = 2,788.28 : x
  2. Step 2: Convert to fraction form
    10,578.92/15,869.46 = 2,788.28/x
  3. Step 3: Cross multiply
    10,578.92x = 15,869.46 × 2,788.28
  4. Step 4: Simplify right side
    10,578.92x = 44,248,497.93
  5. Step 5: Solve for x
    x = 44,248,497.93/10,578.92
  6. Step 6: Final answer
    x = 4,182.70

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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.