Home / 13,417.62-20,128.59-5,627.22

Finding the Fourth Proportional to 13,417.62, 20,128.59 and 5,627.22

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Solution

The fourth proportional to 13,417.62, 20,128.59 and 5,627.22 is: 8,441.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.62 : 20,128.59 = 5,627.22 : x
  2. Step 2: Convert to fraction form
    13,417.62/20,128.59 = 5,627.22/x
  3. Step 3: Cross multiply
    13,417.62x = 20,128.59 × 5,627.22
  4. Step 4: Simplify right side
    13,417.62x = 113,268,004.22
  5. Step 5: Solve for x
    x = 113,268,004.22/13,417.62
  6. Step 6: Final answer
    x = 8,441.74

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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.