Home / 18,215.16-27,341.46-9,447.72

Finding the Fourth Proportional to 18,215.16, 27,341.46 and 9,447.72

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Solution

The fourth proportional to 18,215.16, 27,341.46 and 9,447.72 is: 14,181.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.16 : 27,341.46 = 9,447.72 : x
  2. Step 2: Convert to fraction form
    18,215.16/27,341.46 = 9,447.72/x
  3. Step 3: Cross multiply
    18,215.16x = 27,341.46 × 9,447.72
  4. Step 4: Simplify right side
    18,215.16x = 258,314,458.47
  5. Step 5: Solve for x
    x = 258,314,458.47/18,215.16
  6. Step 6: Final answer
    x = 14,181.29

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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.