Home / 8,972.07-12,381.42-4,994.10

Finding the Fourth Proportional to 8,972.07, 12,381.42 and 4,994.10

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Solution

The fourth proportional to 8,972.07, 12,381.42 and 4,994.10 is: 6,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.07 : 12,381.42 = 4,994.10 : x
  2. Step 2: Convert to fraction form
    8,972.07/12,381.42 = 4,994.10/x
  3. Step 3: Cross multiply
    8,972.07x = 12,381.42 × 4,994.10
  4. Step 4: Simplify right side
    8,972.07x = 61,834,049.62
  5. Step 5: Solve for x
    x = 61,834,049.62/8,972.07
  6. Step 6: Final answer
    x = 6,891.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.