Home / 18,814.17-28,232.19-7,728.84

Finding the Fourth Proportional to 18,814.17, 28,232.19 and 7,728.84

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Solution

The fourth proportional to 18,814.17, 28,232.19 and 7,728.84 is: 11,597.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.17 : 28,232.19 = 7,728.84 : x
  2. Step 2: Convert to fraction form
    18,814.17/28,232.19 = 7,728.84/x
  3. Step 3: Cross multiply
    18,814.17x = 28,232.19 × 7,728.84
  4. Step 4: Simplify right side
    18,814.17x = 218,202,079.36
  5. Step 5: Solve for x
    x = 218,202,079.36/18,814.17
  6. Step 6: Final answer
    x = 11,597.75

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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.