Home / 8,989.20-12,404.94-4,956.16

Finding the Fourth Proportional to 8,989.20, 12,404.94 and 4,956.16

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Solution

The fourth proportional to 8,989.20, 12,404.94 and 4,956.16 is: 6,839.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.20 : 12,404.94 = 4,956.16 : x
  2. Step 2: Convert to fraction form
    8,989.20/12,404.94 = 4,956.16/x
  3. Step 3: Cross multiply
    8,989.20x = 12,404.94 × 4,956.16
  4. Step 4: Simplify right side
    8,989.20x = 61,480,867.43
  5. Step 5: Solve for x
    x = 61,480,867.43/8,989.20
  6. Step 6: Final answer
    x = 6,839.41

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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.