Home / 19,693.04-27,178.96-11,309.60

Finding the Fourth Proportional to 19,693.04, 27,178.96 and 11,309.60

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Solution

The fourth proportional to 19,693.04, 27,178.96 and 11,309.60 is: 15,608.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,693.04 : 27,178.96 = 11,309.60 : x
  2. Step 2: Convert to fraction form
    19,693.04/27,178.96 = 11,309.60/x
  3. Step 3: Cross multiply
    19,693.04x = 27,178.96 × 11,309.60
  4. Step 4: Simplify right side
    19,693.04x = 307,383,166.02
  5. Step 5: Solve for x
    x = 307,383,166.02/19,693.04
  6. Step 6: Final answer
    x = 15,608.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.