Home / 8,310.18-11,467.50-5,165.76

Finding the Fourth Proportional to 8,310.18, 11,467.50 and 5,165.76

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Solution

The fourth proportional to 8,310.18, 11,467.50 and 5,165.76 is: 7,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.18 : 11,467.50 = 5,165.76 : x
  2. Step 2: Convert to fraction form
    8,310.18/11,467.50 = 5,165.76/x
  3. Step 3: Cross multiply
    8,310.18x = 11,467.50 × 5,165.76
  4. Step 4: Simplify right side
    8,310.18x = 59,238,352.80
  5. Step 5: Solve for x
    x = 59,238,352.80/8,310.18
  6. Step 6: Final answer
    x = 7,128.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.