Home / 13,274.45-18,319.07-7,305.56

Finding the Fourth Proportional to 13,274.45, 18,319.07 and 7,305.56

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Solution

The fourth proportional to 13,274.45, 18,319.07 and 7,305.56 is: 10,081.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.45 : 18,319.07 = 7,305.56 : x
  2. Step 2: Convert to fraction form
    13,274.45/18,319.07 = 7,305.56/x
  3. Step 3: Cross multiply
    13,274.45x = 18,319.07 × 7,305.56
  4. Step 4: Simplify right side
    13,274.45x = 133,831,028.50
  5. Step 5: Solve for x
    x = 133,831,028.50/13,274.45
  6. Step 6: Final answer
    x = 10,081.85

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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.