Home / 7,816.50-10,787.04-4,279.68

Finding the Fourth Proportional to 7,816.50, 10,787.04 and 4,279.68

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Solution

The fourth proportional to 7,816.50, 10,787.04 and 4,279.68 is: 5,906.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.50 : 10,787.04 = 4,279.68 : x
  2. Step 2: Convert to fraction form
    7,816.50/10,787.04 = 4,279.68/x
  3. Step 3: Cross multiply
    7,816.50x = 10,787.04 × 4,279.68
  4. Step 4: Simplify right side
    7,816.50x = 46,165,079.35
  5. Step 5: Solve for x
    x = 46,165,079.35/7,816.50
  6. Step 6: Final answer
    x = 5,906.11

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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.