Home / 13,731.66-20,548.27-11,889.13

Finding the Fourth Proportional to 13,731.66, 20,548.27 and 11,889.13

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Solution

The fourth proportional to 13,731.66, 20,548.27 and 11,889.13 is: 17,791.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.66 : 20,548.27 = 11,889.13 : x
  2. Step 2: Convert to fraction form
    13,731.66/20,548.27 = 11,889.13/x
  3. Step 3: Cross multiply
    13,731.66x = 20,548.27 × 11,889.13
  4. Step 4: Simplify right side
    13,731.66x = 244,301,053.31
  5. Step 5: Solve for x
    x = 244,301,053.31/13,731.66
  6. Step 6: Final answer
    x = 17,791.08

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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.