Home / 18,111.24-25,007.67-11,740.86

Finding the Fourth Proportional to 18,111.24, 25,007.67 and 11,740.86

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Solution

The fourth proportional to 18,111.24, 25,007.67 and 11,740.86 is: 16,211.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.24 : 25,007.67 = 11,740.86 : x
  2. Step 2: Convert to fraction form
    18,111.24/25,007.67 = 11,740.86/x
  3. Step 3: Cross multiply
    18,111.24x = 25,007.67 × 11,740.86
  4. Step 4: Simplify right side
    18,111.24x = 293,611,552.40
  5. Step 5: Solve for x
    x = 293,611,552.40/18,111.24
  6. Step 6: Final answer
    x = 16,211.57

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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.