Home / 8,458.20-12,698.10-4,512.60

Finding the Fourth Proportional to 8,458.20, 12,698.10 and 4,512.60

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Solution

The fourth proportional to 8,458.20, 12,698.10 and 4,512.60 is: 6,774.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.20 : 12,698.10 = 4,512.60 : x
  2. Step 2: Convert to fraction form
    8,458.20/12,698.10 = 4,512.60/x
  3. Step 3: Cross multiply
    8,458.20x = 12,698.10 × 4,512.60
  4. Step 4: Simplify right side
    8,458.20x = 57,301,446.06
  5. Step 5: Solve for x
    x = 57,301,446.06/8,458.20
  6. Step 6: Final answer
    x = 6,774.66

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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.