Home / 18,321.67-25,285.11-10,256.07

Finding the Fourth Proportional to 18,321.67, 25,285.11 and 10,256.07

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Solution

The fourth proportional to 18,321.67, 25,285.11 and 10,256.07 is: 14,154.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.67 : 25,285.11 = 10,256.07 : x
  2. Step 2: Convert to fraction form
    18,321.67/25,285.11 = 10,256.07/x
  3. Step 3: Cross multiply
    18,321.67x = 25,285.11 × 10,256.07
  4. Step 4: Simplify right side
    18,321.67x = 259,325,829.94
  5. Step 5: Solve for x
    x = 259,325,829.94/18,321.67
  6. Step 6: Final answer
    x = 14,154.05

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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.