Home / 18,128.91-27,181.06-9,222.35

Finding the Fourth Proportional to 18,128.91, 27,181.06 and 9,222.35

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Solution

The fourth proportional to 18,128.91, 27,181.06 and 9,222.35 is: 13,827.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.91 : 27,181.06 = 9,222.35 : x
  2. Step 2: Convert to fraction form
    18,128.91/27,181.06 = 9,222.35/x
  3. Step 3: Cross multiply
    18,128.91x = 27,181.06 × 9,222.35
  4. Step 4: Simplify right side
    18,128.91x = 250,673,248.69
  5. Step 5: Solve for x
    x = 250,673,248.69/18,128.91
  6. Step 6: Final answer
    x = 13,827.27

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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.