Home / 19,248.64-28,855.68-6,928

Finding the Fourth Proportional to 19,248.64, 28,855.68 and 6,928

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Solution

The fourth proportional to 19,248.64, 28,855.68 and 6,928 is: 10,385.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,248.64 : 28,855.68 = 6,928 : x
  2. Step 2: Convert to fraction form
    19,248.64/28,855.68 = 6,928/x
  3. Step 3: Cross multiply
    19,248.64x = 28,855.68 × 6,928
  4. Step 4: Simplify right side
    19,248.64x = 199,912,151.04
  5. Step 5: Solve for x
    x = 199,912,151.04/19,248.64
  6. Step 6: Final answer
    x = 10,385.78

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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.