Home / 13,400.06-20,100.16-5,500.53

Finding the Fourth Proportional to 13,400.06, 20,100.16 and 5,500.53

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Solution

The fourth proportional to 13,400.06, 20,100.16 and 5,500.53 is: 8,250.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.06 : 20,100.16 = 5,500.53 : x
  2. Step 2: Convert to fraction form
    13,400.06/20,100.16 = 5,500.53/x
  3. Step 3: Cross multiply
    13,400.06x = 20,100.16 × 5,500.53
  4. Step 4: Simplify right side
    13,400.06x = 110,561,533.08
  5. Step 5: Solve for x
    x = 110,561,533.08/13,400.06
  6. Step 6: Final answer
    x = 8,250.82

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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.