Home / 13,902.54-20,856.60-6,111.36

Finding the Fourth Proportional to 13,902.54, 20,856.60 and 6,111.36

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Solution

The fourth proportional to 13,902.54, 20,856.60 and 6,111.36 is: 9,168.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.54 : 20,856.60 = 6,111.36 : x
  2. Step 2: Convert to fraction form
    13,902.54/20,856.60 = 6,111.36/x
  3. Step 3: Cross multiply
    13,902.54x = 20,856.60 × 6,111.36
  4. Step 4: Simplify right side
    13,902.54x = 127,462,190.98
  5. Step 5: Solve for x
    x = 127,462,190.98/13,902.54
  6. Step 6: Final answer
    x = 9,168.27

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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.