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Finding the Fourth Proportional to 8,857.89, 12,223.44 and 4,878.92

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Solution

The fourth proportional to 8,857.89, 12,223.44 and 4,878.92 is: 6,732.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.89 : 12,223.44 = 4,878.92 : x
  2. Step 2: Convert to fraction form
    8,857.89/12,223.44 = 4,878.92/x
  3. Step 3: Cross multiply
    8,857.89x = 12,223.44 × 4,878.92
  4. Step 4: Simplify right side
    8,857.89x = 59,637,124.77
  5. Step 5: Solve for x
    x = 59,637,124.77/8,857.89
  6. Step 6: Final answer
    x = 6,732.66

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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.