Home / 11,219.10-16,840.96-4,649.90

Finding the Fourth Proportional to 11,219.10, 16,840.96 and 4,649.90

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Solution

The fourth proportional to 11,219.10, 16,840.96 and 4,649.90 is: 6,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.10 : 16,840.96 = 4,649.90 : x
  2. Step 2: Convert to fraction form
    11,219.10/16,840.96 = 4,649.90/x
  3. Step 3: Cross multiply
    11,219.10x = 16,840.96 × 4,649.90
  4. Step 4: Simplify right side
    11,219.10x = 78,308,763.69
  5. Step 5: Solve for x
    x = 78,308,763.69/11,219.10
  6. Step 6: Final answer
    x = 6,979.95

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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.