Home / 10,196.31-15,294.45-2,800.80

Finding the Fourth Proportional to 10,196.31, 15,294.45 and 2,800.80

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Solution

The fourth proportional to 10,196.31, 15,294.45 and 2,800.80 is: 4,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,196.31 : 15,294.45 = 2,800.80 : x
  2. Step 2: Convert to fraction form
    10,196.31/15,294.45 = 2,800.80/x
  3. Step 3: Cross multiply
    10,196.31x = 15,294.45 × 2,800.80
  4. Step 4: Simplify right side
    10,196.31x = 42,836,695.56
  5. Step 5: Solve for x
    x = 42,836,695.56/10,196.31
  6. Step 6: Final answer
    x = 4,201.20

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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.