Home / 18,514.84-25,550.88-10,131.34

Finding the Fourth Proportional to 18,514.84, 25,550.88 and 10,131.34

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Solution

The fourth proportional to 18,514.84, 25,550.88 and 10,131.34 is: 13,981.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.84 : 25,550.88 = 10,131.34 : x
  2. Step 2: Convert to fraction form
    18,514.84/25,550.88 = 10,131.34/x
  3. Step 3: Cross multiply
    18,514.84x = 25,550.88 × 10,131.34
  4. Step 4: Simplify right side
    18,514.84x = 258,864,652.58
  5. Step 5: Solve for x
    x = 258,864,652.58/18,514.84
  6. Step 6: Final answer
    x = 13,981.47

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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.