Home / 11,836.41-16,330.43-7,858.29

Finding the Fourth Proportional to 11,836.41, 16,330.43 and 7,858.29

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Solution

The fourth proportional to 11,836.41, 16,330.43 and 7,858.29 is: 10,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,836.41 : 16,330.43 = 7,858.29 : x
  2. Step 2: Convert to fraction form
    11,836.41/16,330.43 = 7,858.29/x
  3. Step 3: Cross multiply
    11,836.41x = 16,330.43 × 7,858.29
  4. Step 4: Simplify right side
    11,836.41x = 128,329,133.82
  5. Step 5: Solve for x
    x = 128,329,133.82/11,836.41
  6. Step 6: Final answer
    x = 10,841.90

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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.