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Finding the Fourth Proportional to 10,800, 16,188.48 and 5,598.72

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Solution

The fourth proportional to 10,800, 16,188.48 and 5,598.72 is: 8,392.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,800 : 16,188.48 = 5,598.72 : x
  2. Step 2: Convert to fraction form
    10,800/16,188.48 = 5,598.72/x
  3. Step 3: Cross multiply
    10,800x = 16,188.48 × 5,598.72
  4. Step 4: Simplify right side
    10,800x = 90,634,766.75
  5. Step 5: Solve for x
    x = 90,634,766.75/10,800
  6. Step 6: Final answer
    x = 8,392.11

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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.