Home / 11,990.62-16,549.20-7,518.20

Finding the Fourth Proportional to 11,990.62, 16,549.20 and 7,518.20

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Solution

The fourth proportional to 11,990.62, 16,549.20 and 7,518.20 is: 10,376.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.62 : 16,549.20 = 7,518.20 : x
  2. Step 2: Convert to fraction form
    11,990.62/16,549.20 = 7,518.20/x
  3. Step 3: Cross multiply
    11,990.62x = 16,549.20 × 7,518.20
  4. Step 4: Simplify right side
    11,990.62x = 124,420,195.44
  5. Step 5: Solve for x
    x = 124,420,195.44/11,990.62
  6. Step 6: Final answer
    x = 10,376.46

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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.