Home / 10,512.20-15,806.70-8,822.60

Finding the Fourth Proportional to 10,512.20, 15,806.70 and 8,822.60

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Solution

The fourth proportional to 10,512.20, 15,806.70 and 8,822.60 is: 13,266.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.20 : 15,806.70 = 8,822.60 : x
  2. Step 2: Convert to fraction form
    10,512.20/15,806.70 = 8,822.60/x
  3. Step 3: Cross multiply
    10,512.20x = 15,806.70 × 8,822.60
  4. Step 4: Simplify right side
    10,512.20x = 139,456,191.42
  5. Step 5: Solve for x
    x = 139,456,191.42/10,512.20
  6. Step 6: Final answer
    x = 13,266.13

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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.