Home / 13,851.24-20,776.16-5,085.48

Finding the Fourth Proportional to 13,851.24, 20,776.16 and 5,085.48

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Solution

The fourth proportional to 13,851.24, 20,776.16 and 5,085.48 is: 7,627.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.24 : 20,776.16 = 5,085.48 : x
  2. Step 2: Convert to fraction form
    13,851.24/20,776.16 = 5,085.48/x
  3. Step 3: Cross multiply
    13,851.24x = 20,776.16 × 5,085.48
  4. Step 4: Simplify right side
    13,851.24x = 105,656,720.73
  5. Step 5: Solve for x
    x = 105,656,720.73/13,851.24
  6. Step 6: Final answer
    x = 7,627.96

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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.