Home / 18,217.12-25,156.08-11,514.64

Finding the Fourth Proportional to 18,217.12, 25,156.08 and 11,514.64

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Solution

The fourth proportional to 18,217.12, 25,156.08 and 11,514.64 is: 15,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.12 : 25,156.08 = 11,514.64 : x
  2. Step 2: Convert to fraction form
    18,217.12/25,156.08 = 11,514.64/x
  3. Step 3: Cross multiply
    18,217.12x = 25,156.08 × 11,514.64
  4. Step 4: Simplify right side
    18,217.12x = 289,663,205.01
  5. Step 5: Solve for x
    x = 289,663,205.01/18,217.12
  6. Step 6: Final answer
    x = 15,900.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.