Home / 16,666.88-25,003.68-6,278.72

Finding the Fourth Proportional to 16,666.88, 25,003.68 and 6,278.72

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Solution

The fourth proportional to 16,666.88, 25,003.68 and 6,278.72 is: 9,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,666.88 : 25,003.68 = 6,278.72 : x
  2. Step 2: Convert to fraction form
    16,666.88/25,003.68 = 6,278.72/x
  3. Step 3: Cross multiply
    16,666.88x = 25,003.68 × 6,278.72
  4. Step 4: Simplify right side
    16,666.88x = 156,991,105.69
  5. Step 5: Solve for x
    x = 156,991,105.69/16,666.88
  6. Step 6: Final answer
    x = 9,419.35

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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.