Home / 10,486.97-15,730.61-2,695.78

Finding the Fourth Proportional to 10,486.97, 15,730.61 and 2,695.78

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Solution

The fourth proportional to 10,486.97, 15,730.61 and 2,695.78 is: 4,043.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.97 : 15,730.61 = 2,695.78 : x
  2. Step 2: Convert to fraction form
    10,486.97/15,730.61 = 2,695.78/x
  3. Step 3: Cross multiply
    10,486.97x = 15,730.61 × 2,695.78
  4. Step 4: Simplify right side
    10,486.97x = 42,406,270.01
  5. Step 5: Solve for x
    x = 42,406,270.01/10,486.97
  6. Step 6: Final answer
    x = 4,043.71

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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.