Home / 13,634.29-20,463.71-5,742.64

Finding the Fourth Proportional to 13,634.29, 20,463.71 and 5,742.64

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Solution

The fourth proportional to 13,634.29, 20,463.71 and 5,742.64 is: 8,619.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.29 : 20,463.71 = 5,742.64 : x
  2. Step 2: Convert to fraction form
    13,634.29/20,463.71 = 5,742.64/x
  3. Step 3: Cross multiply
    13,634.29x = 20,463.71 × 5,742.64
  4. Step 4: Simplify right side
    13,634.29x = 117,515,719.59
  5. Step 5: Solve for x
    x = 117,515,719.59/13,634.29
  6. Step 6: Final answer
    x = 8,619.13

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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.