Home / 12,394.20-18,591.32-5,276.60

Finding the Fourth Proportional to 12,394.20, 18,591.32 and 5,276.60

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Solution

The fourth proportional to 12,394.20, 18,591.32 and 5,276.60 is: 7,914.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,394.20 : 18,591.32 = 5,276.60 : x
  2. Step 2: Convert to fraction form
    12,394.20/18,591.32 = 5,276.60/x
  3. Step 3: Cross multiply
    12,394.20x = 18,591.32 × 5,276.60
  4. Step 4: Simplify right side
    12,394.20x = 98,098,959.11
  5. Step 5: Solve for x
    x = 98,098,959.11/12,394.20
  6. Step 6: Final answer
    x = 7,914.91

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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.