Home / 7,683.36-11,532.24-3,988.20

Finding the Fourth Proportional to 7,683.36, 11,532.24 and 3,988.20

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Solution

The fourth proportional to 7,683.36, 11,532.24 and 3,988.20 is: 5,986.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,683.36 : 11,532.24 = 3,988.20 : x
  2. Step 2: Convert to fraction form
    7,683.36/11,532.24 = 3,988.20/x
  3. Step 3: Cross multiply
    7,683.36x = 11,532.24 × 3,988.20
  4. Step 4: Simplify right side
    7,683.36x = 45,992,879.57
  5. Step 5: Solve for x
    x = 45,992,879.57/7,683.36
  6. Step 6: Final answer
    x = 5,986.04

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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.