Home / 8,972.38-12,381.80-4,993.43

Finding the Fourth Proportional to 8,972.38, 12,381.80 and 4,993.43

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Solution

The fourth proportional to 8,972.38, 12,381.80 and 4,993.43 is: 6,890.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.38 : 12,381.80 = 4,993.43 : x
  2. Step 2: Convert to fraction form
    8,972.38/12,381.80 = 4,993.43/x
  3. Step 3: Cross multiply
    8,972.38x = 12,381.80 × 4,993.43
  4. Step 4: Simplify right side
    8,972.38x = 61,827,651.57
  5. Step 5: Solve for x
    x = 61,827,651.57/8,972.38
  6. Step 6: Final answer
    x = 6,890.89

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1.5x scale

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.