Home / 8,626.60-12,929.07-3,690.43

Finding the Fourth Proportional to 8,626.60, 12,929.07 and 3,690.43

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Solution

The fourth proportional to 8,626.60, 12,929.07 and 3,690.43 is: 5,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.60 : 12,929.07 = 3,690.43 : x
  2. Step 2: Convert to fraction form
    8,626.60/12,929.07 = 3,690.43/x
  3. Step 3: Cross multiply
    8,626.60x = 12,929.07 × 3,690.43
  4. Step 4: Simplify right side
    8,626.60x = 47,713,827.80
  5. Step 5: Solve for x
    x = 47,713,827.80/8,626.60
  6. Step 6: Final answer
    x = 5,531.01

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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.