Home / 8,928.02-13,389.43-2,686.42

Finding the Fourth Proportional to 8,928.02, 13,389.43 and 2,686.42

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Solution

The fourth proportional to 8,928.02, 13,389.43 and 2,686.42 is: 4,028.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.02 : 13,389.43 = 2,686.42 : x
  2. Step 2: Convert to fraction form
    8,928.02/13,389.43 = 2,686.42/x
  3. Step 3: Cross multiply
    8,928.02x = 13,389.43 × 2,686.42
  4. Step 4: Simplify right side
    8,928.02x = 35,969,632.54
  5. Step 5: Solve for x
    x = 35,969,632.54/8,928.02
  6. Step 6: Final answer
    x = 4,028.85

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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.