Home / 19,658.92-27,129.06-11,275.24

Finding the Fourth Proportional to 19,658.92, 27,129.06 and 11,275.24

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Solution

The fourth proportional to 19,658.92, 27,129.06 and 11,275.24 is: 15,559.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,658.92 : 27,129.06 = 11,275.24 : x
  2. Step 2: Convert to fraction form
    19,658.92/27,129.06 = 11,275.24/x
  3. Step 3: Cross multiply
    19,658.92x = 27,129.06 × 11,275.24
  4. Step 4: Simplify right side
    19,658.92x = 305,886,662.47
  5. Step 5: Solve for x
    x = 305,886,662.47/19,658.92
  6. Step 6: Final answer
    x = 15,559.69

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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.