Home / 11,820.06-16,311.62-6,442.48

Finding the Fourth Proportional to 11,820.06, 16,311.62 and 6,442.48

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Solution

The fourth proportional to 11,820.06, 16,311.62 and 6,442.48 is: 8,890.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.06 : 16,311.62 = 6,442.48 : x
  2. Step 2: Convert to fraction form
    11,820.06/16,311.62 = 6,442.48/x
  3. Step 3: Cross multiply
    11,820.06x = 16,311.62 × 6,442.48
  4. Step 4: Simplify right side
    11,820.06x = 105,087,285.62
  5. Step 5: Solve for x
    x = 105,087,285.62/11,820.06
  6. Step 6: Final answer
    x = 8,890.59

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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.