Home / 13,669.65-20,505.29-4,309.97

Finding the Fourth Proportional to 13,669.65, 20,505.29 and 4,309.97

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Solution

The fourth proportional to 13,669.65, 20,505.29 and 4,309.97 is: 6,465.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.65 : 20,505.29 = 4,309.97 : x
  2. Step 2: Convert to fraction form
    13,669.65/20,505.29 = 4,309.97/x
  3. Step 3: Cross multiply
    13,669.65x = 20,505.29 × 4,309.97
  4. Step 4: Simplify right side
    13,669.65x = 88,377,184.74
  5. Step 5: Solve for x
    x = 88,377,184.74/13,669.65
  6. Step 6: Final answer
    x = 6,465.21

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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.