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Finding the Fourth Proportional to 16,643.68, 24,965.48 and 6,780.80

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Solution

The fourth proportional to 16,643.68, 24,965.48 and 6,780.80 is: 10,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,643.68 : 24,965.48 = 6,780.80 : x
  2. Step 2: Convert to fraction form
    16,643.68/24,965.48 = 6,780.80/x
  3. Step 3: Cross multiply
    16,643.68x = 24,965.48 × 6,780.80
  4. Step 4: Simplify right side
    16,643.68x = 169,285,926.78
  5. Step 5: Solve for x
    x = 169,285,926.78/16,643.68
  6. Step 6: Final answer
    x = 10,171.18

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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.