Home / 13,381.38-20,056.13-5,483.58

Finding the Fourth Proportional to 13,381.38, 20,056.13 and 5,483.58

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Solution

The fourth proportional to 13,381.38, 20,056.13 and 5,483.58 is: 8,218.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.38 : 20,056.13 = 5,483.58 : x
  2. Step 2: Convert to fraction form
    13,381.38/20,056.13 = 5,483.58/x
  3. Step 3: Cross multiply
    13,381.38x = 20,056.13 × 5,483.58
  4. Step 4: Simplify right side
    13,381.38x = 109,979,365.93
  5. Step 5: Solve for x
    x = 109,979,365.93/13,381.38
  6. Step 6: Final answer
    x = 8,218.84

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1.5x scale

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.