Home / 8,173.15-11,282.19-5,190.63

Finding the Fourth Proportional to 8,173.15, 11,282.19 and 5,190.63

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Solution

The fourth proportional to 8,173.15, 11,282.19 and 5,190.63 is: 7,165.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.15 : 11,282.19 = 5,190.63 : x
  2. Step 2: Convert to fraction form
    8,173.15/11,282.19 = 5,190.63/x
  3. Step 3: Cross multiply
    8,173.15x = 11,282.19 × 5,190.63
  4. Step 4: Simplify right side
    8,173.15x = 58,561,675.57
  5. Step 5: Solve for x
    x = 58,561,675.57/8,173.15
  6. Step 6: Final answer
    x = 7,165.13

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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.