Home / 8,691.30-13,036.83-2,117.49

Finding the Fourth Proportional to 8,691.30, 13,036.83 and 2,117.49

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Solution

The fourth proportional to 8,691.30, 13,036.83 and 2,117.49 is: 3,176.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.30 : 13,036.83 = 2,117.49 : x
  2. Step 2: Convert to fraction form
    8,691.30/13,036.83 = 2,117.49/x
  3. Step 3: Cross multiply
    8,691.30x = 13,036.83 × 2,117.49
  4. Step 4: Simplify right side
    8,691.30x = 27,605,357.16
  5. Step 5: Solve for x
    x = 27,605,357.16/8,691.30
  6. Step 6: Final answer
    x = 3,176.21

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1.5x scale

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.