Home / 18,972.85-28,467.48-7,283.35

Finding the Fourth Proportional to 18,972.85, 28,467.48 and 7,283.35

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Solution

The fourth proportional to 18,972.85, 28,467.48 and 7,283.35 is: 10,928.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.85 : 28,467.48 = 7,283.35 : x
  2. Step 2: Convert to fraction form
    18,972.85/28,467.48 = 7,283.35/x
  3. Step 3: Cross multiply
    18,972.85x = 28,467.48 × 7,283.35
  4. Step 4: Simplify right side
    18,972.85x = 207,338,620.46
  5. Step 5: Solve for x
    x = 207,338,620.46/18,972.85
  6. Step 6: Final answer
    x = 10,928.17

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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.