Home / 11,309.65-16,961.90-4,290.44

Finding the Fourth Proportional to 11,309.65, 16,961.90 and 4,290.44

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Solution

The fourth proportional to 11,309.65, 16,961.90 and 4,290.44 is: 6,434.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.65 : 16,961.90 = 4,290.44 : x
  2. Step 2: Convert to fraction form
    11,309.65/16,961.90 = 4,290.44/x
  3. Step 3: Cross multiply
    11,309.65x = 16,961.90 × 4,290.44
  4. Step 4: Simplify right side
    11,309.65x = 72,774,066.99
  5. Step 5: Solve for x
    x = 72,774,066.99/11,309.65
  6. Step 6: Final answer
    x = 6,434.69

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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.