Home / 13,611.67-20,422.78-5,297.52

Finding the Fourth Proportional to 13,611.67, 20,422.78 and 5,297.52

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Solution

The fourth proportional to 13,611.67, 20,422.78 and 5,297.52 is: 7,948.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.67 : 20,422.78 = 5,297.52 : x
  2. Step 2: Convert to fraction form
    13,611.67/20,422.78 = 5,297.52/x
  3. Step 3: Cross multiply
    13,611.67x = 20,422.78 × 5,297.52
  4. Step 4: Simplify right side
    13,611.67x = 108,190,085.51
  5. Step 5: Solve for x
    x = 108,190,085.51/13,611.67
  6. Step 6: Final answer
    x = 7,948.33

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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.