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Finding the Fourth Proportional to 8,612.58, 12,919.18 and 2,373.08

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Solution

The fourth proportional to 8,612.58, 12,919.18 and 2,373.08 is: 3,559.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.58 : 12,919.18 = 2,373.08 : x
  2. Step 2: Convert to fraction form
    8,612.58/12,919.18 = 2,373.08/x
  3. Step 3: Cross multiply
    8,612.58x = 12,919.18 × 2,373.08
  4. Step 4: Simplify right side
    8,612.58x = 30,658,247.67
  5. Step 5: Solve for x
    x = 30,658,247.67/8,612.58
  6. Step 6: Final answer
    x = 3,559.71

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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.