Home / 11,427.38-17,146.74-7,721.48

Finding the Fourth Proportional to 11,427.38, 17,146.74 and 7,721.48

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Solution

The fourth proportional to 11,427.38, 17,146.74 and 7,721.48 is: 11,586.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.38 : 17,146.74 = 7,721.48 : x
  2. Step 2: Convert to fraction form
    11,427.38/17,146.74 = 7,721.48/x
  3. Step 3: Cross multiply
    11,427.38x = 17,146.74 × 7,721.48
  4. Step 4: Simplify right side
    11,427.38x = 132,398,209.98
  5. Step 5: Solve for x
    x = 132,398,209.98/11,427.38
  6. Step 6: Final answer
    x = 11,586.05

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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.