Home / 8,930.36-13,389.63-3,993.20

Finding the Fourth Proportional to 8,930.36, 13,389.63 and 3,993.20

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Solution

The fourth proportional to 8,930.36, 13,389.63 and 3,993.20 is: 5,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.36 : 13,389.63 = 3,993.20 : x
  2. Step 2: Convert to fraction form
    8,930.36/13,389.63 = 3,993.20/x
  3. Step 3: Cross multiply
    8,930.36x = 13,389.63 × 3,993.20
  4. Step 4: Simplify right side
    8,930.36x = 53,467,470.52
  5. Step 5: Solve for x
    x = 53,467,470.52/8,930.36
  6. Step 6: Final answer
    x = 5,987.16

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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.