Home / 12,422.12-17,142.53-6,833.12

Finding the Fourth Proportional to 12,422.12, 17,142.53 and 6,833.12

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Solution

The fourth proportional to 12,422.12, 17,142.53 and 6,833.12 is: 9,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.12 : 17,142.53 = 6,833.12 : x
  2. Step 2: Convert to fraction form
    12,422.12/17,142.53 = 6,833.12/x
  3. Step 3: Cross multiply
    12,422.12x = 17,142.53 × 6,833.12
  4. Step 4: Simplify right side
    12,422.12x = 117,136,844.72
  5. Step 5: Solve for x
    x = 117,136,844.72/12,422.12
  6. Step 6: Final answer
    x = 9,429.70

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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.