Home / 12,159.59-18,239.36-3,394.71

Finding the Fourth Proportional to 12,159.59, 18,239.36 and 3,394.71

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Solution

The fourth proportional to 12,159.59, 18,239.36 and 3,394.71 is: 5,092.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.59 : 18,239.36 = 3,394.71 : x
  2. Step 2: Convert to fraction form
    12,159.59/18,239.36 = 3,394.71/x
  3. Step 3: Cross multiply
    12,159.59x = 18,239.36 × 3,394.71
  4. Step 4: Simplify right side
    12,159.59x = 61,917,320.81
  5. Step 5: Solve for x
    x = 61,917,320.81/12,159.59
  6. Step 6: Final answer
    x = 5,092.06

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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.