Home / 11,848.16-17,734.97-8,128.64

Finding the Fourth Proportional to 11,848.16, 17,734.97 and 8,128.64

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Solution

The fourth proportional to 11,848.16, 17,734.97 and 8,128.64 is: 12,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,848.16 : 17,734.97 = 8,128.64 : x
  2. Step 2: Convert to fraction form
    11,848.16/17,734.97 = 8,128.64/x
  3. Step 3: Cross multiply
    11,848.16x = 17,734.97 × 8,128.64
  4. Step 4: Simplify right side
    11,848.16x = 144,161,186.54
  5. Step 5: Solve for x
    x = 144,161,186.54/11,848.16
  6. Step 6: Final answer
    x = 12,167.39

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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.