Home / 10,126.66-13,974.80-5,878.56

Finding the Fourth Proportional to 10,126.66, 13,974.80 and 5,878.56

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Solution

The fourth proportional to 10,126.66, 13,974.80 and 5,878.56 is: 8,112.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.66 : 13,974.80 = 5,878.56 : x
  2. Step 2: Convert to fraction form
    10,126.66/13,974.80 = 5,878.56/x
  3. Step 3: Cross multiply
    10,126.66x = 13,974.80 × 5,878.56
  4. Step 4: Simplify right side
    10,126.66x = 82,151,700.29
  5. Step 5: Solve for x
    x = 82,151,700.29/10,126.66
  6. Step 6: Final answer
    x = 8,112.42

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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.