Home / 10,998.51-15,174.43-6,745.20

Finding the Fourth Proportional to 10,998.51, 15,174.43 and 6,745.20

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Solution

The fourth proportional to 10,998.51, 15,174.43 and 6,745.20 is: 9,306.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.51 : 15,174.43 = 6,745.20 : x
  2. Step 2: Convert to fraction form
    10,998.51/15,174.43 = 6,745.20/x
  3. Step 3: Cross multiply
    10,998.51x = 15,174.43 × 6,745.20
  4. Step 4: Simplify right side
    10,998.51x = 102,354,565.24
  5. Step 5: Solve for x
    x = 102,354,565.24/10,998.51
  6. Step 6: Final answer
    x = 9,306.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.