Home / 13,447.47-20,168.94-4,085.28

Finding the Fourth Proportional to 13,447.47, 20,168.94 and 4,085.28

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Solution

The fourth proportional to 13,447.47, 20,168.94 and 4,085.28 is: 6,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.47 : 20,168.94 = 4,085.28 : x
  2. Step 2: Convert to fraction form
    13,447.47/20,168.94 = 4,085.28/x
  3. Step 3: Cross multiply
    13,447.47x = 20,168.94 × 4,085.28
  4. Step 4: Simplify right side
    13,447.47x = 82,395,767.20
  5. Step 5: Solve for x
    x = 82,395,767.20/13,447.47
  6. Step 6: Final answer
    x = 6,127.23

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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.