Home / 12,207.61-18,309.79-3,443.23

Finding the Fourth Proportional to 12,207.61, 18,309.79 and 3,443.23

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Solution

The fourth proportional to 12,207.61, 18,309.79 and 3,443.23 is: 5,164.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.61 : 18,309.79 = 3,443.23 : x
  2. Step 2: Convert to fraction form
    12,207.61/18,309.79 = 3,443.23/x
  3. Step 3: Cross multiply
    12,207.61x = 18,309.79 × 3,443.23
  4. Step 4: Simplify right side
    12,207.61x = 63,044,818.22
  5. Step 5: Solve for x
    x = 63,044,818.22/12,207.61
  6. Step 6: Final answer
    x = 5,164.39

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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.