Home / 13,906.42-20,862.25-5,587.09

Finding the Fourth Proportional to 13,906.42, 20,862.25 and 5,587.09

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Solution

The fourth proportional to 13,906.42, 20,862.25 and 5,587.09 is: 8,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.42 : 20,862.25 = 5,587.09 : x
  2. Step 2: Convert to fraction form
    13,906.42/20,862.25 = 5,587.09/x
  3. Step 3: Cross multiply
    13,906.42x = 20,862.25 × 5,587.09
  4. Step 4: Simplify right side
    13,906.42x = 116,559,202.23
  5. Step 5: Solve for x
    x = 116,559,202.23/13,906.42
  6. Step 6: Final answer
    x = 8,381.68

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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.