Home / 13,904.18-20,856.34-3,515.94

Finding the Fourth Proportional to 13,904.18, 20,856.34 and 3,515.94

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Solution

The fourth proportional to 13,904.18, 20,856.34 and 3,515.94 is: 5,273.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.18 : 20,856.34 = 3,515.94 : x
  2. Step 2: Convert to fraction form
    13,904.18/20,856.34 = 3,515.94/x
  3. Step 3: Cross multiply
    13,904.18x = 20,856.34 × 3,515.94
  4. Step 4: Simplify right side
    13,904.18x = 73,329,640.06
  5. Step 5: Solve for x
    x = 73,329,640.06/13,904.18
  6. Step 6: Final answer
    x = 5,273.93

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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.