Home / 19,871.76-27,422.46-11,257.14

Finding the Fourth Proportional to 19,871.76, 27,422.46 and 11,257.14

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Solution

The fourth proportional to 19,871.76, 27,422.46 and 11,257.14 is: 15,534.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.76 : 27,422.46 = 11,257.14 : x
  2. Step 2: Convert to fraction form
    19,871.76/27,422.46 = 11,257.14/x
  3. Step 3: Cross multiply
    19,871.76x = 27,422.46 × 11,257.14
  4. Step 4: Simplify right side
    19,871.76x = 308,698,471.36
  5. Step 5: Solve for x
    x = 308,698,471.36/19,871.76
  6. Step 6: Final answer
    x = 15,534.53

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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.