Home / 18,689.22-28,034.60-8,703.27

Finding the Fourth Proportional to 18,689.22, 28,034.60 and 8,703.27

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Solution

The fourth proportional to 18,689.22, 28,034.60 and 8,703.27 is: 13,055.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.22 : 28,034.60 = 8,703.27 : x
  2. Step 2: Convert to fraction form
    18,689.22/28,034.60 = 8,703.27/x
  3. Step 3: Cross multiply
    18,689.22x = 28,034.60 × 8,703.27
  4. Step 4: Simplify right side
    18,689.22x = 243,992,693.14
  5. Step 5: Solve for x
    x = 243,992,693.14/18,689.22
  6. Step 6: Final answer
    x = 13,055.26

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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.