Home / 8,791.42-12,132.45-5,015.14

Finding the Fourth Proportional to 8,791.42, 12,132.45 and 5,015.14

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Solution

The fourth proportional to 8,791.42, 12,132.45 and 5,015.14 is: 6,921.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.42 : 12,132.45 = 5,015.14 : x
  2. Step 2: Convert to fraction form
    8,791.42/12,132.45 = 5,015.14/x
  3. Step 3: Cross multiply
    8,791.42x = 12,132.45 × 5,015.14
  4. Step 4: Simplify right side
    8,791.42x = 60,845,935.29
  5. Step 5: Solve for x
    x = 60,845,935.29/8,791.42
  6. Step 6: Final answer
    x = 6,921.06

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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.