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Finding the Fourth Proportional to 15,990.44, 23,990.97 and 7,104.53

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Solution

The fourth proportional to 15,990.44, 23,990.97 and 7,104.53 is: 10,659.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.44 : 23,990.97 = 7,104.53 : x
  2. Step 2: Convert to fraction form
    15,990.44/23,990.97 = 7,104.53/x
  3. Step 3: Cross multiply
    15,990.44x = 23,990.97 × 7,104.53
  4. Step 4: Simplify right side
    15,990.44x = 170,444,530.57
  5. Step 5: Solve for x
    x = 170,444,530.57/15,990.44
  6. Step 6: Final answer
    x = 10,659.16

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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.