Home / 12,159.28-18,242.03-3,394.23

Finding the Fourth Proportional to 12,159.28, 18,242.03 and 3,394.23

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Solution

The fourth proportional to 12,159.28, 18,242.03 and 3,394.23 is: 5,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.28 : 18,242.03 = 3,394.23 : x
  2. Step 2: Convert to fraction form
    12,159.28/18,242.03 = 3,394.23/x
  3. Step 3: Cross multiply
    12,159.28x = 18,242.03 × 3,394.23
  4. Step 4: Simplify right side
    12,159.28x = 61,917,645.49
  5. Step 5: Solve for x
    x = 61,917,645.49/12,159.28
  6. Step 6: Final answer
    x = 5,092.21

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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.