Home / 8,263.04-12,378.40-5,481.44

Finding the Fourth Proportional to 8,263.04, 12,378.40 and 5,481.44

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Solution

The fourth proportional to 8,263.04, 12,378.40 and 5,481.44 is: 8,211.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,263.04 : 12,378.40 = 5,481.44 : x
  2. Step 2: Convert to fraction form
    8,263.04/12,378.40 = 5,481.44/x
  3. Step 3: Cross multiply
    8,263.04x = 12,378.40 × 5,481.44
  4. Step 4: Simplify right side
    8,263.04x = 67,851,456.90
  5. Step 5: Solve for x
    x = 67,851,456.90/8,263.04
  6. Step 6: Final answer
    x = 8,211.44

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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.