Home / 7,412.40-11,113.20-3,027.60

Finding the Fourth Proportional to 7,412.40, 11,113.20 and 3,027.60

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Solution

The fourth proportional to 7,412.40, 11,113.20 and 3,027.60 is: 4,539.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.40 : 11,113.20 = 3,027.60 : x
  2. Step 2: Convert to fraction form
    7,412.40/11,113.20 = 3,027.60/x
  3. Step 3: Cross multiply
    7,412.40x = 11,113.20 × 3,027.60
  4. Step 4: Simplify right side
    7,412.40x = 33,646,324.32
  5. Step 5: Solve for x
    x = 33,646,324.32/7,412.40
  6. Step 6: Final answer
    x = 4,539.19

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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.