Home / 15,175.24-20,942.90-8,461.32

Finding the Fourth Proportional to 15,175.24, 20,942.90 and 8,461.32

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Solution

The fourth proportional to 15,175.24, 20,942.90 and 8,461.32 is: 11,677.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,175.24 : 20,942.90 = 8,461.32 : x
  2. Step 2: Convert to fraction form
    15,175.24/20,942.90 = 8,461.32/x
  3. Step 3: Cross multiply
    15,175.24x = 20,942.90 × 8,461.32
  4. Step 4: Simplify right side
    15,175.24x = 177,204,578.63
  5. Step 5: Solve for x
    x = 177,204,578.63/15,175.24
  6. Step 6: Final answer
    x = 11,677.22

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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.