Home / 18,754.27-28,130.66-4,714.41

Finding the Fourth Proportional to 18,754.27, 28,130.66 and 4,714.41

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Solution

The fourth proportional to 18,754.27, 28,130.66 and 4,714.41 is: 7,071.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.27 : 28,130.66 = 4,714.41 : x
  2. Step 2: Convert to fraction form
    18,754.27/28,130.66 = 4,714.41/x
  3. Step 3: Cross multiply
    18,754.27x = 28,130.66 × 4,714.41
  4. Step 4: Simplify right side
    18,754.27x = 132,619,441.24
  5. Step 5: Solve for x
    x = 132,619,441.24/18,754.27
  6. Step 6: Final answer
    x = 7,071.43

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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.