Home / 11,460.89-17,190.77-3,140.30

Finding the Fourth Proportional to 11,460.89, 17,190.77 and 3,140.30

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Solution

The fourth proportional to 11,460.89, 17,190.77 and 3,140.30 is: 4,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,460.89 : 17,190.77 = 3,140.30 : x
  2. Step 2: Convert to fraction form
    11,460.89/17,190.77 = 3,140.30/x
  3. Step 3: Cross multiply
    11,460.89x = 17,190.77 × 3,140.30
  4. Step 4: Simplify right side
    11,460.89x = 53,984,202.31
  5. Step 5: Solve for x
    x = 53,984,202.31/11,460.89
  6. Step 6: Final answer
    x = 4,710.30

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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.