Home / 18,810.93-25,937.80-11,995.86

Finding the Fourth Proportional to 18,810.93, 25,937.80 and 11,995.86

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Solution

The fourth proportional to 18,810.93, 25,937.80 and 11,995.86 is: 16,540.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.93 : 25,937.80 = 11,995.86 : x
  2. Step 2: Convert to fraction form
    18,810.93/25,937.80 = 11,995.86/x
  3. Step 3: Cross multiply
    18,810.93x = 25,937.80 × 11,995.86
  4. Step 4: Simplify right side
    18,810.93x = 311,146,217.51
  5. Step 5: Solve for x
    x = 311,146,217.51/18,810.93
  6. Step 6: Final answer
    x = 16,540.71

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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.