Home / 17,911.18-26,861.37-7,520.62

Finding the Fourth Proportional to 17,911.18, 26,861.37 and 7,520.62

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Solution

The fourth proportional to 17,911.18, 26,861.37 and 7,520.62 is: 11,278.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911.18 : 26,861.37 = 7,520.62 : x
  2. Step 2: Convert to fraction form
    17,911.18/26,861.37 = 7,520.62/x
  3. Step 3: Cross multiply
    17,911.18x = 26,861.37 × 7,520.62
  4. Step 4: Simplify right side
    17,911.18x = 202,014,156.45
  5. Step 5: Solve for x
    x = 202,014,156.45/17,911.18
  6. Step 6: Final answer
    x = 11,278.66

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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.