Home / 15,512.16-21,405.60-8,796.24

Finding the Fourth Proportional to 15,512.16, 21,405.60 and 8,796.24

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Solution

The fourth proportional to 15,512.16, 21,405.60 and 8,796.24 is: 12,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.16 : 21,405.60 = 8,796.24 : x
  2. Step 2: Convert to fraction form
    15,512.16/21,405.60 = 8,796.24/x
  3. Step 3: Cross multiply
    15,512.16x = 21,405.60 × 8,796.24
  4. Step 4: Simplify right side
    15,512.16x = 188,288,794.94
  5. Step 5: Solve for x
    x = 188,288,794.94/15,512.16
  6. Step 6: Final answer
    x = 12,138.14

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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.