Home / 7,212.89-9,953.35-4,025.98

Finding the Fourth Proportional to 7,212.89, 9,953.35 and 4,025.98

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Solution

The fourth proportional to 7,212.89, 9,953.35 and 4,025.98 is: 5,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.89 : 9,953.35 = 4,025.98 : x
  2. Step 2: Convert to fraction form
    7,212.89/9,953.35 = 4,025.98/x
  3. Step 3: Cross multiply
    7,212.89x = 9,953.35 × 4,025.98
  4. Step 4: Simplify right side
    7,212.89x = 40,071,990.41
  5. Step 5: Solve for x
    x = 40,071,990.41/7,212.89
  6. Step 6: Final answer
    x = 5,555.61

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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.