Home / 8,972.44-12,381.87-4,939.18

Finding the Fourth Proportional to 8,972.44, 12,381.87 and 4,939.18

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Solution

The fourth proportional to 8,972.44, 12,381.87 and 4,939.18 is: 6,816.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.44 : 12,381.87 = 4,939.18 : x
  2. Step 2: Convert to fraction form
    8,972.44/12,381.87 = 4,939.18/x
  3. Step 3: Cross multiply
    8,972.44x = 12,381.87 × 4,939.18
  4. Step 4: Simplify right side
    8,972.44x = 61,156,300.14
  5. Step 5: Solve for x
    x = 61,156,300.14/8,972.44
  6. Step 6: Final answer
    x = 6,816.02

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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.