Home / 18,111.91-27,171.96-6,425.11

Finding the Fourth Proportional to 18,111.91, 27,171.96 and 6,425.11

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Solution

The fourth proportional to 18,111.91, 27,171.96 and 6,425.11 is: 9,639.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.91 : 27,171.96 = 6,425.11 : x
  2. Step 2: Convert to fraction form
    18,111.91/27,171.96 = 6,425.11/x
  3. Step 3: Cross multiply
    18,111.91x = 27,171.96 × 6,425.11
  4. Step 4: Simplify right side
    18,111.91x = 174,582,831.92
  5. Step 5: Solve for x
    x = 174,582,831.92/18,111.91
  6. Step 6: Final answer
    x = 9,639.12

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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.