Home / 11,729.73-16,187.34-6,424.89

Finding the Fourth Proportional to 11,729.73, 16,187.34 and 6,424.89

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Solution

The fourth proportional to 11,729.73, 16,187.34 and 6,424.89 is: 8,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.73 : 16,187.34 = 6,424.89 : x
  2. Step 2: Convert to fraction form
    11,729.73/16,187.34 = 6,424.89/x
  3. Step 3: Cross multiply
    11,729.73x = 16,187.34 × 6,424.89
  4. Step 4: Simplify right side
    11,729.73x = 104,001,878.89
  5. Step 5: Solve for x
    x = 104,001,878.89/11,729.73
  6. Step 6: Final answer
    x = 8,866.52

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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.