Home / 15,923.12-23,839.62-12,170.60

Finding the Fourth Proportional to 15,923.12, 23,839.62 and 12,170.60

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Solution

The fourth proportional to 15,923.12, 23,839.62 and 12,170.60 is: 18,221.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,923.12 : 23,839.62 = 12,170.60 : x
  2. Step 2: Convert to fraction form
    15,923.12/23,839.62 = 12,170.60/x
  3. Step 3: Cross multiply
    15,923.12x = 23,839.62 × 12,170.60
  4. Step 4: Simplify right side
    15,923.12x = 290,142,479.17
  5. Step 5: Solve for x
    x = 290,142,479.17/15,923.12
  6. Step 6: Final answer
    x = 18,221.46

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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.