Home / 18,215.33-25,135.34-10,257.39

Finding the Fourth Proportional to 18,215.33, 25,135.34 and 10,257.39

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Solution

The fourth proportional to 18,215.33, 25,135.34 and 10,257.39 is: 14,154.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.33 : 25,135.34 = 10,257.39 : x
  2. Step 2: Convert to fraction form
    18,215.33/25,135.34 = 10,257.39/x
  3. Step 3: Cross multiply
    18,215.33x = 25,135.34 × 10,257.39
  4. Step 4: Simplify right side
    18,215.33x = 257,822,933.88
  5. Step 5: Solve for x
    x = 257,822,933.88/18,215.33
  6. Step 6: Final answer
    x = 14,154.18

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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.