Home / 11,990.97-16,549.70-7,518.60

Finding the Fourth Proportional to 11,990.97, 16,549.70 and 7,518.60

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Solution

The fourth proportional to 11,990.97, 16,549.70 and 7,518.60 is: 10,377.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.97 : 16,549.70 = 7,518.60 : x
  2. Step 2: Convert to fraction form
    11,990.97/16,549.70 = 7,518.60/x
  3. Step 3: Cross multiply
    11,990.97x = 16,549.70 × 7,518.60
  4. Step 4: Simplify right side
    11,990.97x = 124,430,574.42
  5. Step 5: Solve for x
    x = 124,430,574.42/11,990.97
  6. Step 6: Final answer
    x = 10,377.02

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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.