Home / 18,691.09-28,047.80-7,596.92

Finding the Fourth Proportional to 18,691.09, 28,047.80 and 7,596.92

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Solution

The fourth proportional to 18,691.09, 28,047.80 and 7,596.92 is: 11,399.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691.09 : 28,047.80 = 7,596.92 : x
  2. Step 2: Convert to fraction form
    18,691.09/28,047.80 = 7,596.92/x
  3. Step 3: Cross multiply
    18,691.09x = 28,047.80 × 7,596.92
  4. Step 4: Simplify right side
    18,691.09x = 213,076,981.89
  5. Step 5: Solve for x
    x = 213,076,981.89/18,691.09
  6. Step 6: Final answer
    x = 11,399.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.