Home / 11,858.54-17,789.85-5,284.58

Finding the Fourth Proportional to 11,858.54, 17,789.85 and 5,284.58

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Solution

The fourth proportional to 11,858.54, 17,789.85 and 5,284.58 is: 7,927.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.54 : 17,789.85 = 5,284.58 : x
  2. Step 2: Convert to fraction form
    11,858.54/17,789.85 = 5,284.58/x
  3. Step 3: Cross multiply
    11,858.54x = 17,789.85 × 5,284.58
  4. Step 4: Simplify right side
    11,858.54x = 94,011,885.51
  5. Step 5: Solve for x
    x = 94,011,885.51/11,858.54
  6. Step 6: Final answer
    x = 7,927.78

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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.