Home / 13,681.64-20,514.24-5,351.72

Finding the Fourth Proportional to 13,681.64, 20,514.24 and 5,351.72

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Solution

The fourth proportional to 13,681.64, 20,514.24 and 5,351.72 is: 8,024.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,681.64 : 20,514.24 = 5,351.72 : x
  2. Step 2: Convert to fraction form
    13,681.64/20,514.24 = 5,351.72/x
  3. Step 3: Cross multiply
    13,681.64x = 20,514.24 × 5,351.72
  4. Step 4: Simplify right side
    13,681.64x = 109,786,468.49
  5. Step 5: Solve for x
    x = 109,786,468.49/13,681.64
  6. Step 6: Final answer
    x = 8,024.36

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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.