Home / 18,445.86-27,619.47-9,662.31

Finding the Fourth Proportional to 18,445.86, 27,619.47 and 9,662.31

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Solution

The fourth proportional to 18,445.86, 27,619.47 and 9,662.31 is: 14,467.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.86 : 27,619.47 = 9,662.31 : x
  2. Step 2: Convert to fraction form
    18,445.86/27,619.47 = 9,662.31/x
  3. Step 3: Cross multiply
    18,445.86x = 27,619.47 × 9,662.31
  4. Step 4: Simplify right side
    18,445.86x = 266,867,881.18
  5. Step 5: Solve for x
    x = 266,867,881.18/18,445.86
  6. Step 6: Final answer
    x = 14,467.63

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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.