Home / 13,664.65-20,492.39-5,229.19

Finding the Fourth Proportional to 13,664.65, 20,492.39 and 5,229.19

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Solution

The fourth proportional to 13,664.65, 20,492.39 and 5,229.19 is: 7,842.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.65 : 20,492.39 = 5,229.19 : x
  2. Step 2: Convert to fraction form
    13,664.65/20,492.39 = 5,229.19/x
  3. Step 3: Cross multiply
    13,664.65x = 20,492.39 × 5,229.19
  4. Step 4: Simplify right side
    13,664.65x = 107,158,543.10
  5. Step 5: Solve for x
    x = 107,158,543.10/13,664.65
  6. Step 6: Final answer
    x = 7,842.03

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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.