Home / 13,516.56-20,272.36-3,656.63

Finding the Fourth Proportional to 13,516.56, 20,272.36 and 3,656.63

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Solution

The fourth proportional to 13,516.56, 20,272.36 and 3,656.63 is: 5,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.56 : 20,272.36 = 3,656.63 : x
  2. Step 2: Convert to fraction form
    13,516.56/20,272.36 = 3,656.63/x
  3. Step 3: Cross multiply
    13,516.56x = 20,272.36 × 3,656.63
  4. Step 4: Simplify right side
    13,516.56x = 74,128,519.75
  5. Step 5: Solve for x
    x = 74,128,519.75/13,516.56
  6. Step 6: Final answer
    x = 5,484.27

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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.