Home / 13,277.77-19,920.08-3,917.41

Finding the Fourth Proportional to 13,277.77, 19,920.08 and 3,917.41

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Solution

The fourth proportional to 13,277.77, 19,920.08 and 3,917.41 is: 5,877.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.77 : 19,920.08 = 3,917.41 : x
  2. Step 2: Convert to fraction form
    13,277.77/19,920.08 = 3,917.41/x
  3. Step 3: Cross multiply
    13,277.77x = 19,920.08 × 3,917.41
  4. Step 4: Simplify right side
    13,277.77x = 78,035,170.60
  5. Step 5: Solve for x
    x = 78,035,170.60/13,277.77
  6. Step 6: Final answer
    x = 5,877.13

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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.