Home / 13,458.98-20,189.51-4,099.79

Finding the Fourth Proportional to 13,458.98, 20,189.51 and 4,099.79

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Solution

The fourth proportional to 13,458.98, 20,189.51 and 4,099.79 is: 6,150.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.98 : 20,189.51 = 4,099.79 : x
  2. Step 2: Convert to fraction form
    13,458.98/20,189.51 = 4,099.79/x
  3. Step 3: Cross multiply
    13,458.98x = 20,189.51 × 4,099.79
  4. Step 4: Simplify right side
    13,458.98x = 82,772,796.55
  5. Step 5: Solve for x
    x = 82,772,796.55/13,458.98
  6. Step 6: Final answer
    x = 6,150.00

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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.