Home / 13,298.22-18,351.24-7,329.72

Finding the Fourth Proportional to 13,298.22, 18,351.24 and 7,329.72

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Solution

The fourth proportional to 13,298.22, 18,351.24 and 7,329.72 is: 10,114.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.22 : 18,351.24 = 7,329.72 : x
  2. Step 2: Convert to fraction form
    13,298.22/18,351.24 = 7,329.72/x
  3. Step 3: Cross multiply
    13,298.22x = 18,351.24 × 7,329.72
  4. Step 4: Simplify right side
    13,298.22x = 134,509,450.85
  5. Step 5: Solve for x
    x = 134,509,450.85/13,298.22
  6. Step 6: Final answer
    x = 10,114.85

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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.