Home / 19,773.72-27,285.66-11,275.20

Finding the Fourth Proportional to 19,773.72, 27,285.66 and 11,275.20

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Solution

The fourth proportional to 19,773.72, 27,285.66 and 11,275.20 is: 15,558.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.72 : 27,285.66 = 11,275.20 : x
  2. Step 2: Convert to fraction form
    19,773.72/27,285.66 = 11,275.20/x
  3. Step 3: Cross multiply
    19,773.72x = 27,285.66 × 11,275.20
  4. Step 4: Simplify right side
    19,773.72x = 307,651,273.63
  5. Step 5: Solve for x
    x = 307,651,273.63/19,773.72
  6. Step 6: Final answer
    x = 15,558.59

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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.