Home / 19,226.00-28,786.88-9,972.56

Finding the Fourth Proportional to 19,226.00, 28,786.88 and 9,972.56

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Solution

The fourth proportional to 19,226.00, 28,786.88 and 9,972.56 is: 14,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,226.00 : 28,786.88 = 9,972.56 : x
  2. Step 2: Convert to fraction form
    19,226.00/28,786.88 = 9,972.56/x
  3. Step 3: Cross multiply
    19,226.00x = 28,786.88 × 9,972.56
  4. Step 4: Simplify right side
    19,226.00x = 287,078,719.15
  5. Step 5: Solve for x
    x = 287,078,719.15/19,226.00
  6. Step 6: Final answer
    x = 14,931.80

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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.