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Finding the Fourth Proportional to 8,388.30, 12,582.45 and 2,544.90

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Solution

The fourth proportional to 8,388.30, 12,582.45 and 2,544.90 is: 3,817.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.30 : 12,582.45 = 2,544.90 : x
  2. Step 2: Convert to fraction form
    8,388.30/12,582.45 = 2,544.90/x
  3. Step 3: Cross multiply
    8,388.30x = 12,582.45 × 2,544.90
  4. Step 4: Simplify right side
    8,388.30x = 32,021,077.01
  5. Step 5: Solve for x
    x = 32,021,077.01/8,388.30
  6. Step 6: Final answer
    x = 3,817.35

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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.