Home / 8,447.15-11,658.67-5,090.45

Finding the Fourth Proportional to 8,447.15, 11,658.67 and 5,090.45

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Solution

The fourth proportional to 8,447.15, 11,658.67 and 5,090.45 is: 7,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.15 : 11,658.67 = 5,090.45 : x
  2. Step 2: Convert to fraction form
    8,447.15/11,658.67 = 5,090.45/x
  3. Step 3: Cross multiply
    8,447.15x = 11,658.67 × 5,090.45
  4. Step 4: Simplify right side
    8,447.15x = 59,347,805.68
  5. Step 5: Solve for x
    x = 59,347,805.68/8,447.15
  6. Step 6: Final answer
    x = 7,025.78

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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.