Home / 13,338.05-18,409.06-8,792.75

Finding the Fourth Proportional to 13,338.05, 18,409.06 and 8,792.75

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Solution

The fourth proportional to 13,338.05, 18,409.06 and 8,792.75 is: 12,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.05 : 18,409.06 = 8,792.75 : x
  2. Step 2: Convert to fraction form
    13,338.05/18,409.06 = 8,792.75/x
  3. Step 3: Cross multiply
    13,338.05x = 18,409.06 × 8,792.75
  4. Step 4: Simplify right side
    13,338.05x = 161,866,269.87
  5. Step 5: Solve for x
    x = 161,866,269.87/13,338.05
  6. Step 6: Final answer
    x = 12,135.68

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1.5x scale

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.