Home / 18,717.22-25,828.65-10,217.65

Finding the Fourth Proportional to 18,717.22, 25,828.65 and 10,217.65

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Solution

The fourth proportional to 18,717.22, 25,828.65 and 10,217.65 is: 14,099.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.22 : 25,828.65 = 10,217.65 : x
  2. Step 2: Convert to fraction form
    18,717.22/25,828.65 = 10,217.65/x
  3. Step 3: Cross multiply
    18,717.22x = 25,828.65 × 10,217.65
  4. Step 4: Simplify right side
    18,717.22x = 263,908,105.67
  5. Step 5: Solve for x
    x = 263,908,105.67/18,717.22
  6. Step 6: Final answer
    x = 14,099.75

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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.