Home / 11,449.62-17,172.40-5,208.18

Finding the Fourth Proportional to 11,449.62, 17,172.40 and 5,208.18

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Solution

The fourth proportional to 11,449.62, 17,172.40 and 5,208.18 is: 7,811.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,449.62 : 17,172.40 = 5,208.18 : x
  2. Step 2: Convert to fraction form
    11,449.62/17,172.40 = 5,208.18/x
  3. Step 3: Cross multiply
    11,449.62x = 17,172.40 × 5,208.18
  4. Step 4: Simplify right side
    11,449.62x = 89,436,950.23
  5. Step 5: Solve for x
    x = 89,436,950.23/11,449.62
  6. Step 6: Final answer
    x = 7,811.35

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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.