Home / 11,810.60-17,717.81-3,491.45

Finding the Fourth Proportional to 11,810.60, 17,717.81 and 3,491.45

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Solution

The fourth proportional to 11,810.60, 17,717.81 and 3,491.45 is: 5,237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,810.60 : 17,717.81 = 3,491.45 : x
  2. Step 2: Convert to fraction form
    11,810.60/17,717.81 = 3,491.45/x
  3. Step 3: Cross multiply
    11,810.60x = 17,717.81 × 3,491.45
  4. Step 4: Simplify right side
    11,810.60x = 61,860,847.72
  5. Step 5: Solve for x
    x = 61,860,847.72/11,810.60
  6. Step 6: Final answer
    x = 5,237.74

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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.