Home / 18,963.08-28,436.31-6,479.76

Finding the Fourth Proportional to 18,963.08, 28,436.31 and 6,479.76

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Solution

The fourth proportional to 18,963.08, 28,436.31 and 6,479.76 is: 9,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.08 : 28,436.31 = 6,479.76 : x
  2. Step 2: Convert to fraction form
    18,963.08/28,436.31 = 6,479.76/x
  3. Step 3: Cross multiply
    18,963.08x = 28,436.31 × 6,479.76
  4. Step 4: Simplify right side
    18,963.08x = 184,260,464.09
  5. Step 5: Solve for x
    x = 184,260,464.09/18,963.08
  6. Step 6: Final answer
    x = 9,716.80

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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.