Home / 8,922.39-12,311.89-4,942.51

Finding the Fourth Proportional to 8,922.39, 12,311.89 and 4,942.51

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Solution

The fourth proportional to 8,922.39, 12,311.89 and 4,942.51 is: 6,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.39 : 12,311.89 = 4,942.51 : x
  2. Step 2: Convert to fraction form
    8,922.39/12,311.89 = 4,942.51/x
  3. Step 3: Cross multiply
    8,922.39x = 12,311.89 × 4,942.51
  4. Step 4: Simplify right side
    8,922.39x = 60,851,639.44
  5. Step 5: Solve for x
    x = 60,851,639.44/8,922.39
  6. Step 6: Final answer
    x = 6,820.11

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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.