Home / 13,609.80-20,395.22-7,754.32

Finding the Fourth Proportional to 13,609.80, 20,395.22 and 7,754.32

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Solution

The fourth proportional to 13,609.80, 20,395.22 and 7,754.32 is: 11,620.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.80 : 20,395.22 = 7,754.32 : x
  2. Step 2: Convert to fraction form
    13,609.80/20,395.22 = 7,754.32/x
  3. Step 3: Cross multiply
    13,609.80x = 20,395.22 × 7,754.32
  4. Step 4: Simplify right side
    13,609.80x = 158,151,062.35
  5. Step 5: Solve for x
    x = 158,151,062.35/13,609.80
  6. Step 6: Final answer
    x = 11,620.38

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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.