Home / 8,130.22-11,215.68-6,334.49

Finding the Fourth Proportional to 8,130.22, 11,215.68 and 6,334.49

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Solution

The fourth proportional to 8,130.22, 11,215.68 and 6,334.49 is: 8,738.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.22 : 11,215.68 = 6,334.49 : x
  2. Step 2: Convert to fraction form
    8,130.22/11,215.68 = 6,334.49/x
  3. Step 3: Cross multiply
    8,130.22x = 11,215.68 × 6,334.49
  4. Step 4: Simplify right side
    8,130.22x = 71,045,612.80
  5. Step 5: Solve for x
    x = 71,045,612.80/8,130.22
  6. Step 6: Final answer
    x = 8,738.46

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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.