Home / 13,904.47-20,856.53-3,374.58

Finding the Fourth Proportional to 13,904.47, 20,856.53 and 3,374.58

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Solution

The fourth proportional to 13,904.47, 20,856.53 and 3,374.58 is: 5,061.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.47 : 20,856.53 = 3,374.58 : x
  2. Step 2: Convert to fraction form
    13,904.47/20,856.53 = 3,374.58/x
  3. Step 3: Cross multiply
    13,904.47x = 20,856.53 × 3,374.58
  4. Step 4: Simplify right side
    13,904.47x = 70,382,024.79
  5. Step 5: Solve for x
    x = 70,382,024.79/13,904.47
  6. Step 6: Final answer
    x = 5,061.83

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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.