Home / 12,422.13-17,142.51-6,756.84

Finding the Fourth Proportional to 12,422.13, 17,142.51 and 6,756.84

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Solution

The fourth proportional to 12,422.13, 17,142.51 and 6,756.84 is: 9,324.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.13 : 17,142.51 = 6,756.84 : x
  2. Step 2: Convert to fraction form
    12,422.13/17,142.51 = 6,756.84/x
  3. Step 3: Cross multiply
    12,422.13x = 17,142.51 × 6,756.84
  4. Step 4: Simplify right side
    12,422.13x = 115,829,197.27
  5. Step 5: Solve for x
    x = 115,829,197.27/12,422.13
  6. Step 6: Final answer
    x = 9,324.42

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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.