Home / 18,118.86-27,178.31-4,971.33

Finding the Fourth Proportional to 18,118.86, 27,178.31 and 4,971.33

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Solution

The fourth proportional to 18,118.86, 27,178.31 and 4,971.33 is: 7,457.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.86 : 27,178.31 = 4,971.33 : x
  2. Step 2: Convert to fraction form
    18,118.86/27,178.31 = 4,971.33/x
  3. Step 3: Cross multiply
    18,118.86x = 27,178.31 × 4,971.33
  4. Step 4: Simplify right side
    18,118.86x = 135,112,323.00
  5. Step 5: Solve for x
    x = 135,112,323.00/18,118.86
  6. Step 6: Final answer
    x = 7,457.00

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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.