Home / 12,182.84-18,281.55-11,191.40

Finding the Fourth Proportional to 12,182.84, 18,281.55 and 11,191.40

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Solution

The fourth proportional to 12,182.84, 18,281.55 and 11,191.40 is: 16,793.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.84 : 18,281.55 = 11,191.40 : x
  2. Step 2: Convert to fraction form
    12,182.84/18,281.55 = 11,191.40/x
  3. Step 3: Cross multiply
    12,182.84x = 18,281.55 × 11,191.40
  4. Step 4: Simplify right side
    12,182.84x = 204,596,094.83
  5. Step 5: Solve for x
    x = 204,596,094.83/12,182.84
  6. Step 6: Final answer
    x = 16,793.79

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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.