Home / 11,128.52-16,732.80-10,261.62

Finding the Fourth Proportional to 11,128.52, 16,732.80 and 10,261.62

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Solution

The fourth proportional to 11,128.52, 16,732.80 and 10,261.62 is: 15,429.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.52 : 16,732.80 = 10,261.62 : x
  2. Step 2: Convert to fraction form
    11,128.52/16,732.80 = 10,261.62/x
  3. Step 3: Cross multiply
    11,128.52x = 16,732.80 × 10,261.62
  4. Step 4: Simplify right side
    11,128.52x = 171,705,635.14
  5. Step 5: Solve for x
    x = 171,705,635.14/11,128.52
  6. Step 6: Final answer
    x = 15,429.33

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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.