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Finding the Fourth Proportional to 8,728.65, 13,093.08 and 2,488.80

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Solution

The fourth proportional to 8,728.65, 13,093.08 and 2,488.80 is: 3,733.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.65 : 13,093.08 = 2,488.80 : x
  2. Step 2: Convert to fraction form
    8,728.65/13,093.08 = 2,488.80/x
  3. Step 3: Cross multiply
    8,728.65x = 13,093.08 × 2,488.80
  4. Step 4: Simplify right side
    8,728.65x = 32,586,057.50
  5. Step 5: Solve for x
    x = 32,586,057.50/8,728.65
  6. Step 6: Final answer
    x = 3,733.23

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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.