Home / 8,972.56-12,380.65-4,993.57

Finding the Fourth Proportional to 8,972.56, 12,380.65 and 4,993.57

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Solution

The fourth proportional to 8,972.56, 12,380.65 and 4,993.57 is: 6,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.56 : 12,380.65 = 4,993.57 : x
  2. Step 2: Convert to fraction form
    8,972.56/12,380.65 = 4,993.57/x
  3. Step 3: Cross multiply
    8,972.56x = 12,380.65 × 4,993.57
  4. Step 4: Simplify right side
    8,972.56x = 61,823,642.42
  5. Step 5: Solve for x
    x = 61,823,642.42/8,972.56
  6. Step 6: Final answer
    x = 6,890.30

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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.