Home / 10,990.12-16,475.22-3,968.47

Finding the Fourth Proportional to 10,990.12, 16,475.22 and 3,968.47

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Solution

The fourth proportional to 10,990.12, 16,475.22 and 3,968.47 is: 5,949.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.12 : 16,475.22 = 3,968.47 : x
  2. Step 2: Convert to fraction form
    10,990.12/16,475.22 = 3,968.47/x
  3. Step 3: Cross multiply
    10,990.12x = 16,475.22 × 3,968.47
  4. Step 4: Simplify right side
    10,990.12x = 65,381,416.31
  5. Step 5: Solve for x
    x = 65,381,416.31/10,990.12
  6. Step 6: Final answer
    x = 5,949.11

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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.