Home / 8,857.28-12,222.86-4,878.43

Finding the Fourth Proportional to 8,857.28, 12,222.86 and 4,878.43

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Solution

The fourth proportional to 8,857.28, 12,222.86 and 4,878.43 is: 6,732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.28 : 12,222.86 = 4,878.43 : x
  2. Step 2: Convert to fraction form
    8,857.28/12,222.86 = 4,878.43/x
  3. Step 3: Cross multiply
    8,857.28x = 12,222.86 × 4,878.43
  4. Step 4: Simplify right side
    8,857.28x = 59,628,366.91
  5. Step 5: Solve for x
    x = 59,628,366.91/8,857.28
  6. Step 6: Final answer
    x = 6,732.13

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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.