Home / 18,514.15-27,756.88-9,147.71

Finding the Fourth Proportional to 18,514.15, 27,756.88 and 9,147.71

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Solution

The fourth proportional to 18,514.15, 27,756.88 and 9,147.71 is: 13,714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.15 : 27,756.88 = 9,147.71 : x
  2. Step 2: Convert to fraction form
    18,514.15/27,756.88 = 9,147.71/x
  3. Step 3: Cross multiply
    18,514.15x = 27,756.88 × 9,147.71
  4. Step 4: Simplify right side
    18,514.15x = 253,911,935.27
  5. Step 5: Solve for x
    x = 253,911,935.27/18,514.15
  6. Step 6: Final answer
    x = 13,714.48

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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.