Home / 13,913.62-20,869.80-4,052.68

Finding the Fourth Proportional to 13,913.62, 20,869.80 and 4,052.68

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Solution

The fourth proportional to 13,913.62, 20,869.80 and 4,052.68 is: 6,078.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.62 : 20,869.80 = 4,052.68 : x
  2. Step 2: Convert to fraction form
    13,913.62/20,869.80 = 4,052.68/x
  3. Step 3: Cross multiply
    13,913.62x = 20,869.80 × 4,052.68
  4. Step 4: Simplify right side
    13,913.62x = 84,578,621.06
  5. Step 5: Solve for x
    x = 84,578,621.06/13,913.62
  6. Step 6: Final answer
    x = 6,078.84

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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.