Home / 8,402.40-11,605.50-6,161.04

Finding the Fourth Proportional to 8,402.40, 11,605.50 and 6,161.04

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Solution

The fourth proportional to 8,402.40, 11,605.50 and 6,161.04 is: 8,509.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402.40 : 11,605.50 = 6,161.04 : x
  2. Step 2: Convert to fraction form
    8,402.40/11,605.50 = 6,161.04/x
  3. Step 3: Cross multiply
    8,402.40x = 11,605.50 × 6,161.04
  4. Step 4: Simplify right side
    8,402.40x = 71,501,949.72
  5. Step 5: Solve for x
    x = 71,501,949.72/8,402.40
  6. Step 6: Final answer
    x = 8,509.71

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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.