Home / 13,910.10-20,851.11-6,117.54

Finding the Fourth Proportional to 13,910.10, 20,851.11 and 6,117.54

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Solution

The fourth proportional to 13,910.10, 20,851.11 and 6,117.54 is: 9,170.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.10 : 20,851.11 = 6,117.54 : x
  2. Step 2: Convert to fraction form
    13,910.10/20,851.11 = 6,117.54/x
  3. Step 3: Cross multiply
    13,910.10x = 20,851.11 × 6,117.54
  4. Step 4: Simplify right side
    13,910.10x = 127,557,499.47
  5. Step 5: Solve for x
    x = 127,557,499.47/13,910.10
  6. Step 6: Final answer
    x = 9,170.14

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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.