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Finding the Fourth Proportional to 12,549.83, 18,817.88 and 5,788.08

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Solution

The fourth proportional to 12,549.83, 18,817.88 and 5,788.08 is: 8,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.83 : 18,817.88 = 5,788.08 : x
  2. Step 2: Convert to fraction form
    12,549.83/18,817.88 = 5,788.08/x
  3. Step 3: Cross multiply
    12,549.83x = 18,817.88 × 5,788.08
  4. Step 4: Simplify right side
    12,549.83x = 108,919,365.93
  5. Step 5: Solve for x
    x = 108,919,365.93/12,549.83
  6. Step 6: Final answer
    x = 8,678.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.