Home / 15,530.43-23,272.97-7,728.51

Finding the Fourth Proportional to 15,530.43, 23,272.97 and 7,728.51

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Solution

The fourth proportional to 15,530.43, 23,272.97 and 7,728.51 is: 11,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,530.43 : 23,272.97 = 7,728.51 : x
  2. Step 2: Convert to fraction form
    15,530.43/23,272.97 = 7,728.51/x
  3. Step 3: Cross multiply
    15,530.43x = 23,272.97 × 7,728.51
  4. Step 4: Simplify right side
    15,530.43x = 179,865,342.73
  5. Step 5: Solve for x
    x = 179,865,342.73/15,530.43
  6. Step 6: Final answer
    x = 11,581.48

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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.