Home / 13,514.61-18,653.49-8,212.95

Finding the Fourth Proportional to 13,514.61, 18,653.49 and 8,212.95

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Solution

The fourth proportional to 13,514.61, 18,653.49 and 8,212.95 is: 11,335.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.61 : 18,653.49 = 8,212.95 : x
  2. Step 2: Convert to fraction form
    13,514.61/18,653.49 = 8,212.95/x
  3. Step 3: Cross multiply
    13,514.61x = 18,653.49 × 8,212.95
  4. Step 4: Simplify right side
    13,514.61x = 153,200,180.70
  5. Step 5: Solve for x
    x = 153,200,180.70/13,514.61
  6. Step 6: Final answer
    x = 11,335.89

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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.