Home / 11,819.62-16,311.08-6,442.02

Finding the Fourth Proportional to 11,819.62, 16,311.08 and 6,442.02

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Solution

The fourth proportional to 11,819.62, 16,311.08 and 6,442.02 is: 8,889.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.62 : 16,311.08 = 6,442.02 : x
  2. Step 2: Convert to fraction form
    11,819.62/16,311.08 = 6,442.02/x
  3. Step 3: Cross multiply
    11,819.62x = 16,311.08 × 6,442.02
  4. Step 4: Simplify right side
    11,819.62x = 105,076,303.58
  5. Step 5: Solve for x
    x = 105,076,303.58/11,819.62
  6. Step 6: Final answer
    x = 8,889.99

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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.