Home / 13,688.06-20,528.96-3,828.04

Finding the Fourth Proportional to 13,688.06, 20,528.96 and 3,828.04

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Solution

The fourth proportional to 13,688.06, 20,528.96 and 3,828.04 is: 5,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.06 : 20,528.96 = 3,828.04 : x
  2. Step 2: Convert to fraction form
    13,688.06/20,528.96 = 3,828.04/x
  3. Step 3: Cross multiply
    13,688.06x = 20,528.96 × 3,828.04
  4. Step 4: Simplify right side
    13,688.06x = 78,585,658.83
  5. Step 5: Solve for x
    x = 78,585,658.83/13,688.06
  6. Step 6: Final answer
    x = 5,741.18

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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.