Home / 12,218.94-18,252.60-8,860.53

Finding the Fourth Proportional to 12,218.94, 18,252.60 and 8,860.53

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Solution

The fourth proportional to 12,218.94, 18,252.60 and 8,860.53 is: 13,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.94 : 18,252.60 = 8,860.53 : x
  2. Step 2: Convert to fraction form
    12,218.94/18,252.60 = 8,860.53/x
  3. Step 3: Cross multiply
    12,218.94x = 18,252.60 × 8,860.53
  4. Step 4: Simplify right side
    12,218.94x = 161,727,811.55
  5. Step 5: Solve for x
    x = 161,727,811.55/12,218.94
  6. Step 6: Final answer
    x = 13,235.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.