Home / 13,391.36-20,087.04-4,157.36

Finding the Fourth Proportional to 13,391.36, 20,087.04 and 4,157.36

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Solution

The fourth proportional to 13,391.36, 20,087.04 and 4,157.36 is: 6,236.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.36 : 20,087.04 = 4,157.36 : x
  2. Step 2: Convert to fraction form
    13,391.36/20,087.04 = 4,157.36/x
  3. Step 3: Cross multiply
    13,391.36x = 20,087.04 × 4,157.36
  4. Step 4: Simplify right side
    13,391.36x = 83,509,056.61
  5. Step 5: Solve for x
    x = 83,509,056.61/13,391.36
  6. Step 6: Final answer
    x = 6,236.04

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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.