Home / 7,318.40-10,093.84-6,311.88

Finding the Fourth Proportional to 7,318.40, 10,093.84 and 6,311.88

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Solution

The fourth proportional to 7,318.40, 10,093.84 and 6,311.88 is: 8,705.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.40 : 10,093.84 = 6,311.88 : x
  2. Step 2: Convert to fraction form
    7,318.40/10,093.84 = 6,311.88/x
  3. Step 3: Cross multiply
    7,318.40x = 10,093.84 × 6,311.88
  4. Step 4: Simplify right side
    7,318.40x = 63,711,091.04
  5. Step 5: Solve for x
    x = 63,711,091.04/7,318.40
  6. Step 6: Final answer
    x = 8,705.61

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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.