Home / 13,904.46-20,856.51-3,374.56

Finding the Fourth Proportional to 13,904.46, 20,856.51 and 3,374.56

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Solution

The fourth proportional to 13,904.46, 20,856.51 and 3,374.56 is: 5,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.46 : 20,856.51 = 3,374.56 : x
  2. Step 2: Convert to fraction form
    13,904.46/20,856.51 = 3,374.56/x
  3. Step 3: Cross multiply
    13,904.46x = 20,856.51 × 3,374.56
  4. Step 4: Simplify right side
    13,904.46x = 70,381,592.31
  5. Step 5: Solve for x
    x = 70,381,592.31/13,904.46
  6. Step 6: Final answer
    x = 5,061.80

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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.