Home / 13,626.43-18,803.61-7,658.01

Finding the Fourth Proportional to 13,626.43, 18,803.61 and 7,658.01

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Solution

The fourth proportional to 13,626.43, 18,803.61 and 7,658.01 is: 10,567.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.43 : 18,803.61 = 7,658.01 : x
  2. Step 2: Convert to fraction form
    13,626.43/18,803.61 = 7,658.01/x
  3. Step 3: Cross multiply
    13,626.43x = 18,803.61 × 7,658.01
  4. Step 4: Simplify right side
    13,626.43x = 143,998,233.42
  5. Step 5: Solve for x
    x = 143,998,233.42/13,626.43
  6. Step 6: Final answer
    x = 10,567.57

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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.