Home / 13,451.05-20,177.09-6,869.55

Finding the Fourth Proportional to 13,451.05, 20,177.09 and 6,869.55

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Solution

The fourth proportional to 13,451.05, 20,177.09 and 6,869.55 is: 10,304.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.05 : 20,177.09 = 6,869.55 : x
  2. Step 2: Convert to fraction form
    13,451.05/20,177.09 = 6,869.55/x
  3. Step 3: Cross multiply
    13,451.05x = 20,177.09 × 6,869.55
  4. Step 4: Simplify right side
    13,451.05x = 138,607,558.26
  5. Step 5: Solve for x
    x = 138,607,558.26/13,451.05
  6. Step 6: Final answer
    x = 10,304.59

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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.