Home / 8,696.60-13,045.04-2,122.90

Finding the Fourth Proportional to 8,696.60, 13,045.04 and 2,122.90

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Solution

The fourth proportional to 8,696.60, 13,045.04 and 2,122.90 is: 3,184.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.60 : 13,045.04 = 2,122.90 : x
  2. Step 2: Convert to fraction form
    8,696.60/13,045.04 = 2,122.90/x
  3. Step 3: Cross multiply
    8,696.60x = 13,045.04 × 2,122.90
  4. Step 4: Simplify right side
    8,696.60x = 27,693,315.42
  5. Step 5: Solve for x
    x = 27,693,315.42/8,696.60
  6. Step 6: Final answer
    x = 3,184.38

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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.