Home / 18,243.95-25,175.93-10,287.86

Finding the Fourth Proportional to 18,243.95, 25,175.93 and 10,287.86

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Solution

The fourth proportional to 18,243.95, 25,175.93 and 10,287.86 is: 14,196.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.95 : 25,175.93 = 10,287.86 : x
  2. Step 2: Convert to fraction form
    18,243.95/25,175.93 = 10,287.86/x
  3. Step 3: Cross multiply
    18,243.95x = 25,175.93 × 10,287.86
  4. Step 4: Simplify right side
    18,243.95x = 259,006,265.89
  5. Step 5: Solve for x
    x = 259,006,265.89/18,243.95
  6. Step 6: Final answer
    x = 14,196.83

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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.