Home / 13,200.95-19,801.44-5,415.23

Finding the Fourth Proportional to 13,200.95, 19,801.44 and 5,415.23

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Solution

The fourth proportional to 13,200.95, 19,801.44 and 5,415.23 is: 8,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.95 : 19,801.44 = 5,415.23 : x
  2. Step 2: Convert to fraction form
    13,200.95/19,801.44 = 5,415.23/x
  3. Step 3: Cross multiply
    13,200.95x = 19,801.44 × 5,415.23
  4. Step 4: Simplify right side
    13,200.95x = 107,229,401.43
  5. Step 5: Solve for x
    x = 107,229,401.43/13,200.95
  6. Step 6: Final answer
    x = 8,122.85

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Similar ratio
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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.