Home / 16,881.40-25,322.10-5,786.60

Finding the Fourth Proportional to 16,881.40, 25,322.10 and 5,786.60

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Solution

The fourth proportional to 16,881.40, 25,322.10 and 5,786.60 is: 8,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,881.40 : 25,322.10 = 5,786.60 : x
  2. Step 2: Convert to fraction form
    16,881.40/25,322.10 = 5,786.60/x
  3. Step 3: Cross multiply
    16,881.40x = 25,322.10 × 5,786.60
  4. Step 4: Simplify right side
    16,881.40x = 146,528,863.86
  5. Step 5: Solve for x
    x = 146,528,863.86/16,881.40
  6. Step 6: Final answer
    x = 8,679.90

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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.