Home / 18,005.36-27,020.12-6,318.61

Finding the Fourth Proportional to 18,005.36, 27,020.12 and 6,318.61

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Solution

The fourth proportional to 18,005.36, 27,020.12 and 6,318.61 is: 9,482.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005.36 : 27,020.12 = 6,318.61 : x
  2. Step 2: Convert to fraction form
    18,005.36/27,020.12 = 6,318.61/x
  3. Step 3: Cross multiply
    18,005.36x = 27,020.12 × 6,318.61
  4. Step 4: Simplify right side
    18,005.36x = 170,729,501.29
  5. Step 5: Solve for x
    x = 170,729,501.29/18,005.36
  6. Step 6: Final answer
    x = 9,482.15

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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.