Home / 11,146.98-15,383.58-6,431.58

Finding the Fourth Proportional to 11,146.98, 15,383.58 and 6,431.58

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Solution

The fourth proportional to 11,146.98, 15,383.58 and 6,431.58 is: 8,876.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.98 : 15,383.58 = 6,431.58 : x
  2. Step 2: Convert to fraction form
    11,146.98/15,383.58 = 6,431.58/x
  3. Step 3: Cross multiply
    11,146.98x = 15,383.58 × 6,431.58
  4. Step 4: Simplify right side
    11,146.98x = 98,940,725.46
  5. Step 5: Solve for x
    x = 98,940,725.46/11,146.98
  6. Step 6: Final answer
    x = 8,876.01

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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.