Home / 12,797.28-17,659.80-7,131.84

Finding the Fourth Proportional to 12,797.28, 17,659.80 and 7,131.84

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Solution

The fourth proportional to 12,797.28, 17,659.80 and 7,131.84 is: 9,841.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.28 : 17,659.80 = 7,131.84 : x
  2. Step 2: Convert to fraction form
    12,797.28/17,659.80 = 7,131.84/x
  3. Step 3: Cross multiply
    12,797.28x = 17,659.80 × 7,131.84
  4. Step 4: Simplify right side
    12,797.28x = 125,946,868.03
  5. Step 5: Solve for x
    x = 125,946,868.03/12,797.28
  6. Step 6: Final answer
    x = 9,841.69

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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.