Home / 14,769.78-20,381.82-8,800.08

Finding the Fourth Proportional to 14,769.78, 20,381.82 and 8,800.08

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Solution

The fourth proportional to 14,769.78, 20,381.82 and 8,800.08 is: 12,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,769.78 : 20,381.82 = 8,800.08 : x
  2. Step 2: Convert to fraction form
    14,769.78/20,381.82 = 8,800.08/x
  3. Step 3: Cross multiply
    14,769.78x = 20,381.82 × 8,800.08
  4. Step 4: Simplify right side
    14,769.78x = 179,361,646.55
  5. Step 5: Solve for x
    x = 179,361,646.55/14,769.78
  6. Step 6: Final answer
    x = 12,143.83

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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.