Home / 12,191.12-18,282.89-4,398.92

Finding the Fourth Proportional to 12,191.12, 18,282.89 and 4,398.92

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Solution

The fourth proportional to 12,191.12, 18,282.89 and 4,398.92 is: 6,597.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.12 : 18,282.89 = 4,398.92 : x
  2. Step 2: Convert to fraction form
    12,191.12/18,282.89 = 4,398.92/x
  3. Step 3: Cross multiply
    12,191.12x = 18,282.89 × 4,398.92
  4. Step 4: Simplify right side
    12,191.12x = 80,424,970.48
  5. Step 5: Solve for x
    x = 80,424,970.48/12,191.12
  6. Step 6: Final answer
    x = 6,597.01

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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.