Home / 13,200.78-19,799.34-3,339.46

Finding the Fourth Proportional to 13,200.78, 19,799.34 and 3,339.46

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Solution

The fourth proportional to 13,200.78, 19,799.34 and 3,339.46 is: 5,008.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.78 : 19,799.34 = 3,339.46 : x
  2. Step 2: Convert to fraction form
    13,200.78/19,799.34 = 3,339.46/x
  3. Step 3: Cross multiply
    13,200.78x = 19,799.34 × 3,339.46
  4. Step 4: Simplify right side
    13,200.78x = 66,119,103.96
  5. Step 5: Solve for x
    x = 66,119,103.96/13,200.78
  6. Step 6: Final answer
    x = 5,008.73

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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.