Home / 16,789.20-25,167.80-6,256.40

Finding the Fourth Proportional to 16,789.20, 25,167.80 and 6,256.40

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Solution

The fourth proportional to 16,789.20, 25,167.80 and 6,256.40 is: 9,378.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,789.20 : 25,167.80 = 6,256.40 : x
  2. Step 2: Convert to fraction form
    16,789.20/25,167.80 = 6,256.40/x
  3. Step 3: Cross multiply
    16,789.20x = 25,167.80 × 6,256.40
  4. Step 4: Simplify right side
    16,789.20x = 157,459,823.92
  5. Step 5: Solve for x
    x = 157,459,823.92/16,789.20
  6. Step 6: Final answer
    x = 9,378.64

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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.