Home / 12,515.43-17,271.30-7,799.73

Finding the Fourth Proportional to 12,515.43, 17,271.30 and 7,799.73

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Solution

The fourth proportional to 12,515.43, 17,271.30 and 7,799.73 is: 10,763.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.43 : 17,271.30 = 7,799.73 : x
  2. Step 2: Convert to fraction form
    12,515.43/17,271.30 = 7,799.73/x
  3. Step 3: Cross multiply
    12,515.43x = 17,271.30 × 7,799.73
  4. Step 4: Simplify right side
    12,515.43x = 134,711,476.75
  5. Step 5: Solve for x
    x = 134,711,476.75/12,515.43
  6. Step 6: Final answer
    x = 10,763.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.