Home / 12,833.20-19,265.40-8,153.20

Finding the Fourth Proportional to 12,833.20, 19,265.40 and 8,153.20

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Solution

The fourth proportional to 12,833.20, 19,265.40 and 8,153.20 is: 12,239.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,833.20 : 19,265.40 = 8,153.20 : x
  2. Step 2: Convert to fraction form
    12,833.20/19,265.40 = 8,153.20/x
  3. Step 3: Cross multiply
    12,833.20x = 19,265.40 × 8,153.20
  4. Step 4: Simplify right side
    12,833.20x = 157,074,659.28
  5. Step 5: Solve for x
    x = 157,074,659.28/12,833.20
  6. Step 6: Final answer
    x = 12,239.71

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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.