Home / 13,216.63-19,786.10-8,522.78

Finding the Fourth Proportional to 13,216.63, 19,786.10 and 8,522.78

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Solution

The fourth proportional to 13,216.63, 19,786.10 and 8,522.78 is: 12,759.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.63 : 19,786.10 = 8,522.78 : x
  2. Step 2: Convert to fraction form
    13,216.63/19,786.10 = 8,522.78/x
  3. Step 3: Cross multiply
    13,216.63x = 19,786.10 × 8,522.78
  4. Step 4: Simplify right side
    13,216.63x = 168,632,577.36
  5. Step 5: Solve for x
    x = 168,632,577.36/13,216.63
  6. Step 6: Final answer
    x = 12,759.12

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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.