Home / 19,659.24-27,129.48-11,275.56

Finding the Fourth Proportional to 19,659.24, 27,129.48 and 11,275.56

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Solution

The fourth proportional to 19,659.24, 27,129.48 and 11,275.56 is: 15,560.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.24 : 27,129.48 = 11,275.56 : x
  2. Step 2: Convert to fraction form
    19,659.24/27,129.48 = 11,275.56/x
  3. Step 3: Cross multiply
    19,659.24x = 27,129.48 × 11,275.56
  4. Step 4: Simplify right side
    19,659.24x = 305,900,079.51
  5. Step 5: Solve for x
    x = 305,900,079.51/19,659.24
  6. Step 6: Final answer
    x = 15,560.12

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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.