Home / 16,638.52-24,960.20-6,778.40

Finding the Fourth Proportional to 16,638.52, 24,960.20 and 6,778.40

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Solution

The fourth proportional to 16,638.52, 24,960.20 and 6,778.40 is: 10,168.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638.52 : 24,960.20 = 6,778.40 : x
  2. Step 2: Convert to fraction form
    16,638.52/24,960.20 = 6,778.40/x
  3. Step 3: Cross multiply
    16,638.52x = 24,960.20 × 6,778.40
  4. Step 4: Simplify right side
    16,638.52x = 169,190,219.68
  5. Step 5: Solve for x
    x = 169,190,219.68/16,638.52
  6. Step 6: Final answer
    x = 10,168.59

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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.