Home / 18,207.45-27,319.68-7,111.26

Finding the Fourth Proportional to 18,207.45, 27,319.68 and 7,111.26

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Solution

The fourth proportional to 18,207.45, 27,319.68 and 7,111.26 is: 10,670.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,207.45 : 27,319.68 = 7,111.26 : x
  2. Step 2: Convert to fraction form
    18,207.45/27,319.68 = 7,111.26/x
  3. Step 3: Cross multiply
    18,207.45x = 27,319.68 × 7,111.26
  4. Step 4: Simplify right side
    18,207.45x = 194,277,347.60
  5. Step 5: Solve for x
    x = 194,277,347.60/18,207.45
  6. Step 6: Final answer
    x = 10,670.21

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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.