Home / 13,611.12-20,397.66-7,357.68

Finding the Fourth Proportional to 13,611.12, 20,397.66 and 7,357.68

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Solution

The fourth proportional to 13,611.12, 20,397.66 and 7,357.68 is: 11,026.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.12 : 20,397.66 = 7,357.68 : x
  2. Step 2: Convert to fraction form
    13,611.12/20,397.66 = 7,357.68/x
  3. Step 3: Cross multiply
    13,611.12x = 20,397.66 × 7,357.68
  4. Step 4: Simplify right side
    13,611.12x = 150,079,455.03
  5. Step 5: Solve for x
    x = 150,079,455.03/13,611.12
  6. Step 6: Final answer
    x = 11,026.24

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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.