Home / 16,871.22-25,322.18-8,980.36

Finding the Fourth Proportional to 16,871.22, 25,322.18 and 8,980.36

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Solution

The fourth proportional to 16,871.22, 25,322.18 and 8,980.36 is: 13,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.22 : 25,322.18 = 8,980.36 : x
  2. Step 2: Convert to fraction form
    16,871.22/25,322.18 = 8,980.36/x
  3. Step 3: Cross multiply
    16,871.22x = 25,322.18 × 8,980.36
  4. Step 4: Simplify right side
    16,871.22x = 227,402,251.53
  5. Step 5: Solve for x
    x = 227,402,251.53/16,871.22
  6. Step 6: Final answer
    x = 13,478.71

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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.