Home / 13,287.96-19,919.16-4,965.66

Finding the Fourth Proportional to 13,287.96, 19,919.16 and 4,965.66

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Solution

The fourth proportional to 13,287.96, 19,919.16 and 4,965.66 is: 7,443.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.96 : 19,919.16 = 4,965.66 : x
  2. Step 2: Convert to fraction form
    13,287.96/19,919.16 = 4,965.66/x
  3. Step 3: Cross multiply
    13,287.96x = 19,919.16 × 4,965.66
  4. Step 4: Simplify right side
    13,287.96x = 98,911,776.05
  5. Step 5: Solve for x
    x = 98,911,776.05/13,287.96
  6. Step 6: Final answer
    x = 7,443.71

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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.