Home / 13,462.08-20,193.80-5,142.82

Finding the Fourth Proportional to 13,462.08, 20,193.80 and 5,142.82

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Solution

The fourth proportional to 13,462.08, 20,193.80 and 5,142.82 is: 7,714.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,462.08 : 20,193.80 = 5,142.82 : x
  2. Step 2: Convert to fraction form
    13,462.08/20,193.80 = 5,142.82/x
  3. Step 3: Cross multiply
    13,462.08x = 20,193.80 × 5,142.82
  4. Step 4: Simplify right side
    13,462.08x = 103,853,078.52
  5. Step 5: Solve for x
    x = 103,853,078.52/13,462.08
  6. Step 6: Final answer
    x = 7,714.49

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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.