Home / 8,921.11-12,310.65-4,941.99

Finding the Fourth Proportional to 8,921.11, 12,310.65 and 4,941.99

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Solution

The fourth proportional to 8,921.11, 12,310.65 and 4,941.99 is: 6,819.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.11 : 12,310.65 = 4,941.99 : x
  2. Step 2: Convert to fraction form
    8,921.11/12,310.65 = 4,941.99/x
  3. Step 3: Cross multiply
    8,921.11x = 12,310.65 × 4,941.99
  4. Step 4: Simplify right side
    8,921.11x = 60,839,109.19
  5. Step 5: Solve for x
    x = 60,839,109.19/8,921.11
  6. Step 6: Final answer
    x = 6,819.68

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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.