Home / 12,820.28-19,236.75-5,799.56

Finding the Fourth Proportional to 12,820.28, 19,236.75 and 5,799.56

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Solution

The fourth proportional to 12,820.28, 19,236.75 and 5,799.56 is: 8,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820.28 : 19,236.75 = 5,799.56 : x
  2. Step 2: Convert to fraction form
    12,820.28/19,236.75 = 5,799.56/x
  3. Step 3: Cross multiply
    12,820.28x = 19,236.75 × 5,799.56
  4. Step 4: Simplify right side
    12,820.28x = 111,564,589.65
  5. Step 5: Solve for x
    x = 111,564,589.65/12,820.28
  6. Step 6: Final answer
    x = 8,702.20

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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.