Home / 11,485.71-17,228.65-3,166.18

Finding the Fourth Proportional to 11,485.71, 17,228.65 and 3,166.18

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Solution

The fourth proportional to 11,485.71, 17,228.65 and 3,166.18 is: 4,749.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485.71 : 17,228.65 = 3,166.18 : x
  2. Step 2: Convert to fraction form
    11,485.71/17,228.65 = 3,166.18/x
  3. Step 3: Cross multiply
    11,485.71x = 17,228.65 × 3,166.18
  4. Step 4: Simplify right side
    11,485.71x = 54,548,999.14
  5. Step 5: Solve for x
    x = 54,548,999.14/11,485.71
  6. Step 6: Final answer
    x = 4,749.29

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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.