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Finding the Fourth Proportional to 8,830.93, 12,186.13 and 8,125.62

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Solution

The fourth proportional to 8,830.93, 12,186.13 and 8,125.62 is: 11,212.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,830.93 : 12,186.13 = 8,125.62 : x
  2. Step 2: Convert to fraction form
    8,830.93/12,186.13 = 8,125.62/x
  3. Step 3: Cross multiply
    8,830.93x = 12,186.13 × 8,125.62
  4. Step 4: Simplify right side
    8,830.93x = 99,019,821.02
  5. Step 5: Solve for x
    x = 99,019,821.02/8,830.93
  6. Step 6: Final answer
    x = 11,212.84

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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.