Home / 19,211.44-28,775.40-9,329.92

Finding the Fourth Proportional to 19,211.44, 28,775.40 and 9,329.92

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Solution

The fourth proportional to 19,211.44, 28,775.40 and 9,329.92 is: 13,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.44 : 28,775.40 = 9,329.92 : x
  2. Step 2: Convert to fraction form
    19,211.44/28,775.40 = 9,329.92/x
  3. Step 3: Cross multiply
    19,211.44x = 28,775.40 × 9,329.92
  4. Step 4: Simplify right side
    19,211.44x = 268,472,179.97
  5. Step 5: Solve for x
    x = 268,472,179.97/19,211.44
  6. Step 6: Final answer
    x = 13,974.60

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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.