Home / 18,712.85-25,824.49-10,215.54

Finding the Fourth Proportional to 18,712.85, 25,824.49 and 10,215.54

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Solution

The fourth proportional to 18,712.85, 25,824.49 and 10,215.54 is: 14,097.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.85 : 25,824.49 = 10,215.54 : x
  2. Step 2: Convert to fraction form
    18,712.85/25,824.49 = 10,215.54/x
  3. Step 3: Cross multiply
    18,712.85x = 25,824.49 × 10,215.54
  4. Step 4: Simplify right side
    18,712.85x = 263,811,085.04
  5. Step 5: Solve for x
    x = 263,811,085.04/18,712.85
  6. Step 6: Final answer
    x = 14,097.86

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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.