Home / 8,851.42-12,215.09-4,872.49

Finding the Fourth Proportional to 8,851.42, 12,215.09 and 4,872.49

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Solution

The fourth proportional to 8,851.42, 12,215.09 and 4,872.49 is: 6,724.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.42 : 12,215.09 = 4,872.49 : x
  2. Step 2: Convert to fraction form
    8,851.42/12,215.09 = 4,872.49/x
  3. Step 3: Cross multiply
    8,851.42x = 12,215.09 × 4,872.49
  4. Step 4: Simplify right side
    8,851.42x = 59,517,903.87
  5. Step 5: Solve for x
    x = 59,517,903.87/8,851.42
  6. Step 6: Final answer
    x = 6,724.11

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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.