Home / 19,213.44-28,778.40-9,331.92

Finding the Fourth Proportional to 19,213.44, 28,778.40 and 9,331.92

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Solution

The fourth proportional to 19,213.44, 28,778.40 and 9,331.92 is: 13,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.44 : 28,778.40 = 9,331.92 : x
  2. Step 2: Convert to fraction form
    19,213.44/28,778.40 = 9,331.92/x
  3. Step 3: Cross multiply
    19,213.44x = 28,778.40 × 9,331.92
  4. Step 4: Simplify right side
    19,213.44x = 268,557,726.53
  5. Step 5: Solve for x
    x = 268,557,726.53/19,213.44
  6. Step 6: Final answer
    x = 13,977.60

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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.