Home / 8,453.70-11,670.18-5,625.78

Finding the Fourth Proportional to 8,453.70, 11,670.18 and 5,625.78

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Solution

The fourth proportional to 8,453.70, 11,670.18 and 5,625.78 is: 7,766.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.70 : 11,670.18 = 5,625.78 : x
  2. Step 2: Convert to fraction form
    8,453.70/11,670.18 = 5,625.78/x
  3. Step 3: Cross multiply
    8,453.70x = 11,670.18 × 5,625.78
  4. Step 4: Simplify right side
    8,453.70x = 65,653,865.24
  5. Step 5: Solve for x
    x = 65,653,865.24/8,453.70
  6. Step 6: Final answer
    x = 7,766.29

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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.