Home / 12,610.72-17,402.20-6,945.36

Finding the Fourth Proportional to 12,610.72, 17,402.20 and 6,945.36

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Solution

The fourth proportional to 12,610.72, 17,402.20 and 6,945.36 is: 9,584.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.72 : 17,402.20 = 6,945.36 : x
  2. Step 2: Convert to fraction form
    12,610.72/17,402.20 = 6,945.36/x
  3. Step 3: Cross multiply
    12,610.72x = 17,402.20 × 6,945.36
  4. Step 4: Simplify right side
    12,610.72x = 120,864,543.79
  5. Step 5: Solve for x
    x = 120,864,543.79/12,610.72
  6. Step 6: Final answer
    x = 9,584.27

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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.