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Finding the Fourth Proportional to 8,637.93, 11,850.30 and 8,219.61

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Solution

The fourth proportional to 8,637.93, 11,850.30 and 8,219.61 is: 11,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.93 : 11,850.30 = 8,219.61 : x
  2. Step 2: Convert to fraction form
    8,637.93/11,850.30 = 8,219.61/x
  3. Step 3: Cross multiply
    8,637.93x = 11,850.30 × 8,219.61
  4. Step 4: Simplify right side
    8,637.93x = 97,404,844.38
  5. Step 5: Solve for x
    x = 97,404,844.38/8,637.93
  6. Step 6: Final answer
    x = 11,276.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.