Home / 19,701.28-27,185.34-11,203.36

Finding the Fourth Proportional to 19,701.28, 27,185.34 and 11,203.36

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Solution

The fourth proportional to 19,701.28, 27,185.34 and 11,203.36 is: 15,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.28 : 27,185.34 = 11,203.36 : x
  2. Step 2: Convert to fraction form
    19,701.28/27,185.34 = 11,203.36/x
  3. Step 3: Cross multiply
    19,701.28x = 27,185.34 × 11,203.36
  4. Step 4: Simplify right side
    19,701.28x = 304,567,150.74
  5. Step 5: Solve for x
    x = 304,567,150.74/19,701.28
  6. Step 6: Final answer
    x = 15,459.26

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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.