Home / 18,928.52-28,396.24-7,829.18

Finding the Fourth Proportional to 18,928.52, 28,396.24 and 7,829.18

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Solution

The fourth proportional to 18,928.52, 28,396.24 and 7,829.18 is: 11,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.52 : 28,396.24 = 7,829.18 : x
  2. Step 2: Convert to fraction form
    18,928.52/28,396.24 = 7,829.18/x
  3. Step 3: Cross multiply
    18,928.52x = 28,396.24 × 7,829.18
  4. Step 4: Simplify right side
    18,928.52x = 222,319,274.28
  5. Step 5: Solve for x
    x = 222,319,274.28/18,928.52
  6. Step 6: Final answer
    x = 11,745.20

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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.