Home / 10,949.66-16,422.06-3,159.08

Finding the Fourth Proportional to 10,949.66, 16,422.06 and 3,159.08

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Solution

The fourth proportional to 10,949.66, 16,422.06 and 3,159.08 is: 4,737.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.66 : 16,422.06 = 3,159.08 : x
  2. Step 2: Convert to fraction form
    10,949.66/16,422.06 = 3,159.08/x
  3. Step 3: Cross multiply
    10,949.66x = 16,422.06 × 3,159.08
  4. Step 4: Simplify right side
    10,949.66x = 51,878,601.30
  5. Step 5: Solve for x
    x = 51,878,601.30/10,949.66
  6. Step 6: Final answer
    x = 4,737.92

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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.