Home / 8,691.19-13,036.59-2,117.41

Finding the Fourth Proportional to 8,691.19, 13,036.59 and 2,117.41

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Solution

The fourth proportional to 8,691.19, 13,036.59 and 2,117.41 is: 3,176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.19 : 13,036.59 = 2,117.41 : x
  2. Step 2: Convert to fraction form
    8,691.19/13,036.59 = 2,117.41/x
  3. Step 3: Cross multiply
    8,691.19x = 13,036.59 × 2,117.41
  4. Step 4: Simplify right side
    8,691.19x = 27,603,806.03
  5. Step 5: Solve for x
    x = 27,603,806.03/8,691.19
  6. Step 6: Final answer
    x = 3,176.07

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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.