Home / 8,514.20-11,755.09-5,490.68

Finding the Fourth Proportional to 8,514.20, 11,755.09 and 5,490.68

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Solution

The fourth proportional to 8,514.20, 11,755.09 and 5,490.68 is: 7,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,514.20 : 11,755.09 = 5,490.68 : x
  2. Step 2: Convert to fraction form
    8,514.20/11,755.09 = 5,490.68/x
  3. Step 3: Cross multiply
    8,514.20x = 11,755.09 × 5,490.68
  4. Step 4: Simplify right side
    8,514.20x = 64,543,378.79
  5. Step 5: Solve for x
    x = 64,543,378.79/8,514.20
  6. Step 6: Final answer
    x = 7,580.67

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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.