Home / 12,188.97-18,283.44-4,397.77

Finding the Fourth Proportional to 12,188.97, 18,283.44 and 4,397.77

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Solution

The fourth proportional to 12,188.97, 18,283.44 and 4,397.77 is: 6,596.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.97 : 18,283.44 = 4,397.77 : x
  2. Step 2: Convert to fraction form
    12,188.97/18,283.44 = 4,397.77/x
  3. Step 3: Cross multiply
    12,188.97x = 18,283.44 × 4,397.77
  4. Step 4: Simplify right side
    12,188.97x = 80,406,363.93
  5. Step 5: Solve for x
    x = 80,406,363.93/12,188.97
  6. Step 6: Final answer
    x = 6,596.65

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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.