Home / 19,947.26-27,531.24-11,455.13

Finding the Fourth Proportional to 19,947.26, 27,531.24 and 11,455.13

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Solution

The fourth proportional to 19,947.26, 27,531.24 and 11,455.13 is: 15,810.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.26 : 27,531.24 = 11,455.13 : x
  2. Step 2: Convert to fraction form
    19,947.26/27,531.24 = 11,455.13/x
  3. Step 3: Cross multiply
    19,947.26x = 27,531.24 × 11,455.13
  4. Step 4: Simplify right side
    19,947.26x = 315,373,933.26
  5. Step 5: Solve for x
    x = 315,373,933.26/19,947.26
  6. Step 6: Final answer
    x = 15,810.39

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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.