Home / 13,355.96-20,027.84-7,114.36

Finding the Fourth Proportional to 13,355.96, 20,027.84 and 7,114.36

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Solution

The fourth proportional to 13,355.96, 20,027.84 and 7,114.36 is: 10,668.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.96 : 20,027.84 = 7,114.36 : x
  2. Step 2: Convert to fraction form
    13,355.96/20,027.84 = 7,114.36/x
  3. Step 3: Cross multiply
    13,355.96x = 20,027.84 × 7,114.36
  4. Step 4: Simplify right side
    13,355.96x = 142,485,263.78
  5. Step 5: Solve for x
    x = 142,485,263.78/13,355.96
  6. Step 6: Final answer
    x = 10,668.29

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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.