Home / 11,089.98-16,621.65-6,400.20

Finding the Fourth Proportional to 11,089.98, 16,621.65 and 6,400.20

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Solution

The fourth proportional to 11,089.98, 16,621.65 and 6,400.20 is: 9,592.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.98 : 16,621.65 = 6,400.20 : x
  2. Step 2: Convert to fraction form
    11,089.98/16,621.65 = 6,400.20/x
  3. Step 3: Cross multiply
    11,089.98x = 16,621.65 × 6,400.20
  4. Step 4: Simplify right side
    11,089.98x = 106,381,884.33
  5. Step 5: Solve for x
    x = 106,381,884.33/11,089.98
  6. Step 6: Final answer
    x = 9,592.61

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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.