Home / 8,928.52-13,390.18-2,686.92

Finding the Fourth Proportional to 8,928.52, 13,390.18 and 2,686.92

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Solution

The fourth proportional to 8,928.52, 13,390.18 and 2,686.92 is: 4,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.52 : 13,390.18 = 2,686.92 : x
  2. Step 2: Convert to fraction form
    8,928.52/13,390.18 = 2,686.92/x
  3. Step 3: Cross multiply
    8,928.52x = 13,390.18 × 2,686.92
  4. Step 4: Simplify right side
    8,928.52x = 35,978,342.45
  5. Step 5: Solve for x
    x = 35,978,342.45/8,928.52
  6. Step 6: Final answer
    x = 4,029.60

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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.