Home / 13,626.23-18,804.56-7,658.43

Finding the Fourth Proportional to 13,626.23, 18,804.56 and 7,658.43

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Solution

The fourth proportional to 13,626.23, 18,804.56 and 7,658.43 is: 10,568.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.23 : 18,804.56 = 7,658.43 : x
  2. Step 2: Convert to fraction form
    13,626.23/18,804.56 = 7,658.43/x
  3. Step 3: Cross multiply
    13,626.23x = 18,804.56 × 7,658.43
  4. Step 4: Simplify right side
    13,626.23x = 144,013,368.15
  5. Step 5: Solve for x
    x = 144,013,368.15/13,626.23
  6. Step 6: Final answer
    x = 10,568.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.