Home / 11,135.95-15,383.62-8,894.88

Finding the Fourth Proportional to 11,135.95, 15,383.62 and 8,894.88

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Solution

The fourth proportional to 11,135.95, 15,383.62 and 8,894.88 is: 12,287.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.95 : 15,383.62 = 8,894.88 : x
  2. Step 2: Convert to fraction form
    11,135.95/15,383.62 = 8,894.88/x
  3. Step 3: Cross multiply
    11,135.95x = 15,383.62 × 8,894.88
  4. Step 4: Simplify right side
    11,135.95x = 136,835,464.98
  5. Step 5: Solve for x
    x = 136,835,464.98/11,135.95
  6. Step 6: Final answer
    x = 12,287.73

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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.