Home / 12,377.12-18,568.88-4,981.84

Finding the Fourth Proportional to 12,377.12, 18,568.88 and 4,981.84

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Solution

The fourth proportional to 12,377.12, 18,568.88 and 4,981.84 is: 7,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,377.12 : 18,568.88 = 4,981.84 : x
  2. Step 2: Convert to fraction form
    12,377.12/18,568.88 = 4,981.84/x
  3. Step 3: Cross multiply
    12,377.12x = 18,568.88 × 4,981.84
  4. Step 4: Simplify right side
    12,377.12x = 92,507,189.14
  5. Step 5: Solve for x
    x = 92,507,189.14/12,377.12
  6. Step 6: Final answer
    x = 7,474.05

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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.