Home / 13,961.62-19,269.12-8,928.28

Finding the Fourth Proportional to 13,961.62, 19,269.12 and 8,928.28

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Solution

The fourth proportional to 13,961.62, 19,269.12 and 8,928.28 is: 12,322.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.62 : 19,269.12 = 8,928.28 : x
  2. Step 2: Convert to fraction form
    13,961.62/19,269.12 = 8,928.28/x
  3. Step 3: Cross multiply
    13,961.62x = 19,269.12 × 8,928.28
  4. Step 4: Simplify right side
    13,961.62x = 172,040,098.71
  5. Step 5: Solve for x
    x = 172,040,098.71/13,961.62
  6. Step 6: Final answer
    x = 12,322.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.