Home / 7,212.46-9,953.90-4,379.18

Finding the Fourth Proportional to 7,212.46, 9,953.90 and 4,379.18

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Solution

The fourth proportional to 7,212.46, 9,953.90 and 4,379.18 is: 6,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.46 : 9,953.90 = 4,379.18 : x
  2. Step 2: Convert to fraction form
    7,212.46/9,953.90 = 4,379.18/x
  3. Step 3: Cross multiply
    7,212.46x = 9,953.90 × 4,379.18
  4. Step 4: Simplify right side
    7,212.46x = 43,589,919.80
  5. Step 5: Solve for x
    x = 43,589,919.80/7,212.46
  6. Step 6: Final answer
    x = 6,043.70

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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.