Home / 7,666.41-11,490-3,278.73

Finding the Fourth Proportional to 7,666.41, 11,490 and 3,278.73

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Solution

The fourth proportional to 7,666.41, 11,490 and 3,278.73 is: 4,913.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,666.41 : 11,490 = 3,278.73 : x
  2. Step 2: Convert to fraction form
    7,666.41/11,490 = 3,278.73/x
  3. Step 3: Cross multiply
    7,666.41x = 11,490 × 3,278.73
  4. Step 4: Simplify right side
    7,666.41x = 37,672,607.70
  5. Step 5: Solve for x
    x = 37,672,607.70/7,666.41
  6. Step 6: Final answer
    x = 4,913.98

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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.