Home / 15,450.68-21,321.96-8,377.10

Finding the Fourth Proportional to 15,450.68, 21,321.96 and 8,377.10

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Solution

The fourth proportional to 15,450.68, 21,321.96 and 8,377.10 is: 11,560.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450.68 : 21,321.96 = 8,377.10 : x
  2. Step 2: Convert to fraction form
    15,450.68/21,321.96 = 8,377.10/x
  3. Step 3: Cross multiply
    15,450.68x = 21,321.96 × 8,377.10
  4. Step 4: Simplify right side
    15,450.68x = 178,616,191.12
  5. Step 5: Solve for x
    x = 178,616,191.12/15,450.68
  6. Step 6: Final answer
    x = 11,560.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.