Home / 13,600.47-20,395.51-5,279.41

Finding the Fourth Proportional to 13,600.47, 20,395.51 and 5,279.41

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Solution

The fourth proportional to 13,600.47, 20,395.51 and 5,279.41 is: 7,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.47 : 20,395.51 = 5,279.41 : x
  2. Step 2: Convert to fraction form
    13,600.47/20,395.51 = 5,279.41/x
  3. Step 3: Cross multiply
    13,600.47x = 20,395.51 × 5,279.41
  4. Step 4: Simplify right side
    13,600.47x = 107,676,291.54
  5. Step 5: Solve for x
    x = 107,676,291.54/13,600.47
  6. Step 6: Final answer
    x = 7,917.10

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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.