Home / 12,440.40-18,665.46-4,649.82

Finding the Fourth Proportional to 12,440.40, 18,665.46 and 4,649.82

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Solution

The fourth proportional to 12,440.40, 18,665.46 and 4,649.82 is: 6,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.40 : 18,665.46 = 4,649.82 : x
  2. Step 2: Convert to fraction form
    12,440.40/18,665.46 = 4,649.82/x
  3. Step 3: Cross multiply
    12,440.40x = 18,665.46 × 4,649.82
  4. Step 4: Simplify right side
    12,440.40x = 86,791,029.22
  5. Step 5: Solve for x
    x = 86,791,029.22/12,440.40
  6. Step 6: Final answer
    x = 6,976.55

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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.