Home / 11,747.95-16,211.82-6,442.59

Finding the Fourth Proportional to 11,747.95, 16,211.82 and 6,442.59

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Solution

The fourth proportional to 11,747.95, 16,211.82 and 6,442.59 is: 8,890.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.95 : 16,211.82 = 6,442.59 : x
  2. Step 2: Convert to fraction form
    11,747.95/16,211.82 = 6,442.59/x
  3. Step 3: Cross multiply
    11,747.95x = 16,211.82 × 6,442.59
  4. Step 4: Simplify right side
    11,747.95x = 104,446,109.41
  5. Step 5: Solve for x
    x = 104,446,109.41/11,747.95
  6. Step 6: Final answer
    x = 8,890.58

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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.