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Finding the Fourth Proportional to 8,334.68, 12,491.21 and 6,238.22

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Solution

The fourth proportional to 8,334.68, 12,491.21 and 6,238.22 is: 9,349.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,334.68 : 12,491.21 = 6,238.22 : x
  2. Step 2: Convert to fraction form
    8,334.68/12,491.21 = 6,238.22/x
  3. Step 3: Cross multiply
    8,334.68x = 12,491.21 × 6,238.22
  4. Step 4: Simplify right side
    8,334.68x = 77,922,822.40
  5. Step 5: Solve for x
    x = 77,922,822.40/8,334.68
  6. Step 6: Final answer
    x = 9,349.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.