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Finding the Fourth Proportional to 13,254.99, 19,882.49 and 8,328.09

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Solution

The fourth proportional to 13,254.99, 19,882.49 and 8,328.09 is: 12,492.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.99 : 19,882.49 = 8,328.09 : x
  2. Step 2: Convert to fraction form
    13,254.99/19,882.49 = 8,328.09/x
  3. Step 3: Cross multiply
    13,254.99x = 19,882.49 × 8,328.09
  4. Step 4: Simplify right side
    13,254.99x = 165,583,166.57
  5. Step 5: Solve for x
    x = 165,583,166.57/13,254.99
  6. Step 6: Final answer
    x = 12,492.14

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Similar ratio
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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.