Home / 15,249.39-21,044.55-8,536.17

Finding the Fourth Proportional to 15,249.39, 21,044.55 and 8,536.17

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Solution

The fourth proportional to 15,249.39, 21,044.55 and 8,536.17 is: 11,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,249.39 : 21,044.55 = 8,536.17 : x
  2. Step 2: Convert to fraction form
    15,249.39/21,044.55 = 8,536.17/x
  3. Step 3: Cross multiply
    15,249.39x = 21,044.55 × 8,536.17
  4. Step 4: Simplify right side
    15,249.39x = 179,639,856.37
  5. Step 5: Solve for x
    x = 179,639,856.37/15,249.39
  6. Step 6: Final answer
    x = 11,780.13

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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.