Home / 18,120.08-27,188.81-9,354.99

Finding the Fourth Proportional to 18,120.08, 27,188.81 and 9,354.99

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Solution

The fourth proportional to 18,120.08, 27,188.81 and 9,354.99 is: 14,036.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.08 : 27,188.81 = 9,354.99 : x
  2. Step 2: Convert to fraction form
    18,120.08/27,188.81 = 9,354.99/x
  3. Step 3: Cross multiply
    18,120.08x = 27,188.81 × 9,354.99
  4. Step 4: Simplify right side
    18,120.08x = 254,350,998.89
  5. Step 5: Solve for x
    x = 254,350,998.89/18,120.08
  6. Step 6: Final answer
    x = 14,036.97

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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.