Home / 13,273.04-18,311.28-8,235.56

Finding the Fourth Proportional to 13,273.04, 18,311.28 and 8,235.56

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Solution

The fourth proportional to 13,273.04, 18,311.28 and 8,235.56 is: 11,361.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.04 : 18,311.28 = 8,235.56 : x
  2. Step 2: Convert to fraction form
    13,273.04/18,311.28 = 8,235.56/x
  3. Step 3: Cross multiply
    13,273.04x = 18,311.28 × 8,235.56
  4. Step 4: Simplify right side
    13,273.04x = 150,803,645.12
  5. Step 5: Solve for x
    x = 150,803,645.12/13,273.04
  6. Step 6: Final answer
    x = 11,361.65

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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.