Home / 13,445.25-20,175.17-6,519.75

Finding the Fourth Proportional to 13,445.25, 20,175.17 and 6,519.75

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Solution

The fourth proportional to 13,445.25, 20,175.17 and 6,519.75 is: 9,783.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.25 : 20,175.17 = 6,519.75 : x
  2. Step 2: Convert to fraction form
    13,445.25/20,175.17 = 6,519.75/x
  3. Step 3: Cross multiply
    13,445.25x = 20,175.17 × 6,519.75
  4. Step 4: Simplify right side
    13,445.25x = 131,537,032.01
  5. Step 5: Solve for x
    x = 131,537,032.01/13,445.25
  6. Step 6: Final answer
    x = 9,783.16

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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.