Home / 18,186.89-27,285.09-5,707.31

Finding the Fourth Proportional to 18,186.89, 27,285.09 and 5,707.31

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Solution

The fourth proportional to 18,186.89, 27,285.09 and 5,707.31 is: 8,562.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186.89 : 27,285.09 = 5,707.31 : x
  2. Step 2: Convert to fraction form
    18,186.89/27,285.09 = 5,707.31/x
  3. Step 3: Cross multiply
    18,186.89x = 27,285.09 × 5,707.31
  4. Step 4: Simplify right side
    18,186.89x = 155,724,438.47
  5. Step 5: Solve for x
    x = 155,724,438.47/18,186.89
  6. Step 6: Final answer
    x = 8,562.46

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1.5x scale

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.