Home / 18,708.81-28,057.16-6,225.48

Finding the Fourth Proportional to 18,708.81, 28,057.16 and 6,225.48

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Solution

The fourth proportional to 18,708.81, 28,057.16 and 6,225.48 is: 9,336.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.81 : 28,057.16 = 6,225.48 : x
  2. Step 2: Convert to fraction form
    18,708.81/28,057.16 = 6,225.48/x
  3. Step 3: Cross multiply
    18,708.81x = 28,057.16 × 6,225.48
  4. Step 4: Simplify right side
    18,708.81x = 174,669,288.44
  5. Step 5: Solve for x
    x = 174,669,288.44/18,708.81
  6. Step 6: Final answer
    x = 9,336.21

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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.