Home / 12,385.60-18,580.65-4,063.30

Finding the Fourth Proportional to 12,385.60, 18,580.65 and 4,063.30

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Solution

The fourth proportional to 12,385.60, 18,580.65 and 4,063.30 is: 6,095.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.60 : 18,580.65 = 4,063.30 : x
  2. Step 2: Convert to fraction form
    12,385.60/18,580.65 = 4,063.30/x
  3. Step 3: Cross multiply
    12,385.60x = 18,580.65 × 4,063.30
  4. Step 4: Simplify right side
    12,385.60x = 75,498,755.15
  5. Step 5: Solve for x
    x = 75,498,755.15/12,385.60
  6. Step 6: Final answer
    x = 6,095.69

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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.