Home / 16,867.88-25,305.12-6,478.76

Finding the Fourth Proportional to 16,867.88, 25,305.12 and 6,478.76

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Solution

The fourth proportional to 16,867.88, 25,305.12 and 6,478.76 is: 9,719.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,867.88 : 25,305.12 = 6,478.76 : x
  2. Step 2: Convert to fraction form
    16,867.88/25,305.12 = 6,478.76/x
  3. Step 3: Cross multiply
    16,867.88x = 25,305.12 × 6,478.76
  4. Step 4: Simplify right side
    16,867.88x = 163,945,799.25
  5. Step 5: Solve for x
    x = 163,945,799.25/16,867.88
  6. Step 6: Final answer
    x = 9,719.41

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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.