Home / 8,090.64-11,131.70-6,319.17

Finding the Fourth Proportional to 8,090.64, 11,131.70 and 6,319.17

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Solution

The fourth proportional to 8,090.64, 11,131.70 and 6,319.17 is: 8,694.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.64 : 11,131.70 = 6,319.17 : x
  2. Step 2: Convert to fraction form
    8,090.64/11,131.70 = 6,319.17/x
  3. Step 3: Cross multiply
    8,090.64x = 11,131.70 × 6,319.17
  4. Step 4: Simplify right side
    8,090.64x = 70,343,073.09
  5. Step 5: Solve for x
    x = 70,343,073.09/8,090.64
  6. Step 6: Final answer
    x = 8,694.38

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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.