Home / 7,974.12-11,017.71-5,731.53

Finding the Fourth Proportional to 7,974.12, 11,017.71 and 5,731.53

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Solution

The fourth proportional to 7,974.12, 11,017.71 and 5,731.53 is: 7,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.12 : 11,017.71 = 5,731.53 : x
  2. Step 2: Convert to fraction form
    7,974.12/11,017.71 = 5,731.53/x
  3. Step 3: Cross multiply
    7,974.12x = 11,017.71 × 5,731.53
  4. Step 4: Simplify right side
    7,974.12x = 63,148,335.40
  5. Step 5: Solve for x
    x = 63,148,335.40/7,974.12
  6. Step 6: Final answer
    x = 7,919.16

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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.