Home / 13,299.15-18,352.94-7,331.04

Finding the Fourth Proportional to 13,299.15, 18,352.94 and 7,331.04

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Solution

The fourth proportional to 13,299.15, 18,352.94 and 7,331.04 is: 10,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.15 : 18,352.94 = 7,331.04 : x
  2. Step 2: Convert to fraction form
    13,299.15/18,352.94 = 7,331.04/x
  3. Step 3: Cross multiply
    13,299.15x = 18,352.94 × 7,331.04
  4. Step 4: Simplify right side
    13,299.15x = 134,546,137.26
  5. Step 5: Solve for x
    x = 134,546,137.26/13,299.15
  6. Step 6: Final answer
    x = 10,116.90

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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.