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Finding the Fourth Proportional to 8,479.60, 11,703.84 and 4,943.44

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Solution

The fourth proportional to 8,479.60, 11,703.84 and 4,943.44 is: 6,823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.60 : 11,703.84 = 4,943.44 : x
  2. Step 2: Convert to fraction form
    8,479.60/11,703.84 = 4,943.44/x
  3. Step 3: Cross multiply
    8,479.60x = 11,703.84 × 4,943.44
  4. Step 4: Simplify right side
    8,479.60x = 57,857,230.81
  5. Step 5: Solve for x
    x = 57,857,230.81/8,479.60
  6. Step 6: Final answer
    x = 6,823.11

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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.