Home / 16,871.24-25,282.24-11,938.20

Finding the Fourth Proportional to 16,871.24, 25,282.24 and 11,938.20

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Solution

The fourth proportional to 16,871.24, 25,282.24 and 11,938.20 is: 17,889.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.24 : 25,282.24 = 11,938.20 : x
  2. Step 2: Convert to fraction form
    16,871.24/25,282.24 = 11,938.20/x
  3. Step 3: Cross multiply
    16,871.24x = 25,282.24 × 11,938.20
  4. Step 4: Simplify right side
    16,871.24x = 301,824,437.57
  5. Step 5: Solve for x
    x = 301,824,437.57/16,871.24
  6. Step 6: Final answer
    x = 17,889.88

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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.