Home / 13,599.88-20,399.81-4,240.64

Finding the Fourth Proportional to 13,599.88, 20,399.81 and 4,240.64

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Solution

The fourth proportional to 13,599.88, 20,399.81 and 4,240.64 is: 6,360.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.88 : 20,399.81 = 4,240.64 : x
  2. Step 2: Convert to fraction form
    13,599.88/20,399.81 = 4,240.64/x
  3. Step 3: Cross multiply
    13,599.88x = 20,399.81 × 4,240.64
  4. Step 4: Simplify right side
    13,599.88x = 86,508,280.07
  5. Step 5: Solve for x
    x = 86,508,280.07/13,599.88
  6. Step 6: Final answer
    x = 6,360.96

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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.