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Finding the Fourth Proportional to 8,857.86, 12,223.56 and 4,878.93

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Solution

The fourth proportional to 8,857.86, 12,223.56 and 4,878.93 is: 6,732.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.86 : 12,223.56 = 4,878.93 : x
  2. Step 2: Convert to fraction form
    8,857.86/12,223.56 = 4,878.93/x
  3. Step 3: Cross multiply
    8,857.86x = 12,223.56 × 4,878.93
  4. Step 4: Simplify right side
    8,857.86x = 59,637,930.28
  5. Step 5: Solve for x
    x = 59,637,930.28/8,857.86
  6. Step 6: Final answer
    x = 6,732.77

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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.