Home / 13,933.09-20,903.51-5,611.16

Finding the Fourth Proportional to 13,933.09, 20,903.51 and 5,611.16

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Solution

The fourth proportional to 13,933.09, 20,903.51 and 5,611.16 is: 8,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.09 : 20,903.51 = 5,611.16 : x
  2. Step 2: Convert to fraction form
    13,933.09/20,903.51 = 5,611.16/x
  3. Step 3: Cross multiply
    13,933.09x = 20,903.51 × 5,611.16
  4. Step 4: Simplify right side
    13,933.09x = 117,292,983.95
  5. Step 5: Solve for x
    x = 117,292,983.95/13,933.09
  6. Step 6: Final answer
    x = 8,418.30

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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.