Home / 12,127.78-16,736.58-7,414.66

Finding the Fourth Proportional to 12,127.78, 16,736.58 and 7,414.66

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Solution

The fourth proportional to 12,127.78, 16,736.58 and 7,414.66 is: 10,232.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127.78 : 16,736.58 = 7,414.66 : x
  2. Step 2: Convert to fraction form
    12,127.78/16,736.58 = 7,414.66/x
  3. Step 3: Cross multiply
    12,127.78x = 16,736.58 × 7,414.66
  4. Step 4: Simplify right side
    12,127.78x = 124,096,050.26
  5. Step 5: Solve for x
    x = 124,096,050.26/12,127.78
  6. Step 6: Final answer
    x = 10,232.38

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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.