Home / 7,497.80-11,239.68-3,112.46

Finding the Fourth Proportional to 7,497.80, 11,239.68 and 3,112.46

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Solution

The fourth proportional to 7,497.80, 11,239.68 and 3,112.46 is: 4,665.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,497.80 : 11,239.68 = 3,112.46 : x
  2. Step 2: Convert to fraction form
    7,497.80/11,239.68 = 3,112.46/x
  3. Step 3: Cross multiply
    7,497.80x = 11,239.68 × 3,112.46
  4. Step 4: Simplify right side
    7,497.80x = 34,983,054.41
  5. Step 5: Solve for x
    x = 34,983,054.41/7,497.80
  6. Step 6: Final answer
    x = 4,665.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.