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Finding the Fourth Proportional to 8,718.35, 13,078.22 and 5,232.11

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Solution

The fourth proportional to 8,718.35, 13,078.22 and 5,232.11 is: 7,848.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.35 : 13,078.22 = 5,232.11 : x
  2. Step 2: Convert to fraction form
    8,718.35/13,078.22 = 5,232.11/x
  3. Step 3: Cross multiply
    8,718.35x = 13,078.22 × 5,232.11
  4. Step 4: Simplify right side
    8,718.35x = 68,426,594.09
  5. Step 5: Solve for x
    x = 68,426,594.09/8,718.35
  6. Step 6: Final answer
    x = 7,848.58

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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.