Home / 19,185.80-28,767.78-9,322.44

Finding the Fourth Proportional to 19,185.80, 28,767.78 and 9,322.44

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Solution

The fourth proportional to 19,185.80, 28,767.78 and 9,322.44 is: 13,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.80 : 28,767.78 = 9,322.44 : x
  2. Step 2: Convert to fraction form
    19,185.80/28,767.78 = 9,322.44/x
  3. Step 3: Cross multiply
    19,185.80x = 28,767.78 × 9,322.44
  4. Step 4: Simplify right side
    19,185.80x = 268,185,902.98
  5. Step 5: Solve for x
    x = 268,185,902.98/19,185.80
  6. Step 6: Final answer
    x = 13,978.35

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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.