Home / 13,917.74-20,876.64-3,529.46

Finding the Fourth Proportional to 13,917.74, 20,876.64 and 3,529.46

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Solution

The fourth proportional to 13,917.74, 20,876.64 and 3,529.46 is: 5,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.74 : 20,876.64 = 3,529.46 : x
  2. Step 2: Convert to fraction form
    13,917.74/20,876.64 = 3,529.46/x
  3. Step 3: Cross multiply
    13,917.74x = 20,876.64 × 3,529.46
  4. Step 4: Simplify right side
    13,917.74x = 73,683,265.81
  5. Step 5: Solve for x
    x = 73,683,265.81/13,917.74
  6. Step 6: Final answer
    x = 5,294.20

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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.