Home / 15,612.06-21,544.21-8,538.33

Finding the Fourth Proportional to 15,612.06, 21,544.21 and 8,538.33

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Solution

The fourth proportional to 15,612.06, 21,544.21 and 8,538.33 is: 11,782.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.06 : 21,544.21 = 8,538.33 : x
  2. Step 2: Convert to fraction form
    15,612.06/21,544.21 = 8,538.33/x
  3. Step 3: Cross multiply
    15,612.06x = 21,544.21 × 8,538.33
  4. Step 4: Simplify right side
    15,612.06x = 183,951,574.57
  5. Step 5: Solve for x
    x = 183,951,574.57/15,612.06
  6. Step 6: Final answer
    x = 11,782.66

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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.