Home / 15,678.36-23,517.54-3,991.14

Finding the Fourth Proportional to 15,678.36, 23,517.54 and 3,991.14

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Solution

The fourth proportional to 15,678.36, 23,517.54 and 3,991.14 is: 5,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.36 : 23,517.54 = 3,991.14 : x
  2. Step 2: Convert to fraction form
    15,678.36/23,517.54 = 3,991.14/x
  3. Step 3: Cross multiply
    15,678.36x = 23,517.54 × 3,991.14
  4. Step 4: Simplify right side
    15,678.36x = 93,861,794.60
  5. Step 5: Solve for x
    x = 93,861,794.60/15,678.36
  6. Step 6: Final answer
    x = 5,986.71

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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.