Home / 13,688.04-20,564.94-8,767.24

Finding the Fourth Proportional to 13,688.04, 20,564.94 and 8,767.24

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Solution

The fourth proportional to 13,688.04, 20,564.94 and 8,767.24 is: 13,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.04 : 20,564.94 = 8,767.24 : x
  2. Step 2: Convert to fraction form
    13,688.04/20,564.94 = 8,767.24/x
  3. Step 3: Cross multiply
    13,688.04x = 20,564.94 × 8,767.24
  4. Step 4: Simplify right side
    13,688.04x = 180,297,764.57
  5. Step 5: Solve for x
    x = 180,297,764.57/13,688.04
  6. Step 6: Final answer
    x = 13,171.92

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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.