Home / 8,811.24-13,218.90-5,116.56

Finding the Fourth Proportional to 8,811.24, 13,218.90 and 5,116.56

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Solution

The fourth proportional to 8,811.24, 13,218.90 and 5,116.56 is: 7,676.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.24 : 13,218.90 = 5,116.56 : x
  2. Step 2: Convert to fraction form
    8,811.24/13,218.90 = 5,116.56/x
  3. Step 3: Cross multiply
    8,811.24x = 13,218.90 × 5,116.56
  4. Step 4: Simplify right side
    8,811.24x = 67,635,294.98
  5. Step 5: Solve for x
    x = 67,635,294.98/8,811.24
  6. Step 6: Final answer
    x = 7,676.02

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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.