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Finding the Fourth Proportional to 8,246.32, 12,355.08 and 6,868.51

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Solution

The fourth proportional to 8,246.32, 12,355.08 and 6,868.51 is: 10,290.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,246.32 : 12,355.08 = 6,868.51 : x
  2. Step 2: Convert to fraction form
    8,246.32/12,355.08 = 6,868.51/x
  3. Step 3: Cross multiply
    8,246.32x = 12,355.08 × 6,868.51
  4. Step 4: Simplify right side
    8,246.32x = 84,860,990.53
  5. Step 5: Solve for x
    x = 84,860,990.53/8,246.32
  6. Step 6: Final answer
    x = 10,290.77

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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.