Home / 7,265.15-10,887.32-4,138.70

Finding the Fourth Proportional to 7,265.15, 10,887.32 and 4,138.70

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Solution

The fourth proportional to 7,265.15, 10,887.32 and 4,138.70 is: 6,202.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,265.15 : 10,887.32 = 4,138.70 : x
  2. Step 2: Convert to fraction form
    7,265.15/10,887.32 = 4,138.70/x
  3. Step 3: Cross multiply
    7,265.15x = 10,887.32 × 4,138.70
  4. Step 4: Simplify right side
    7,265.15x = 45,059,372.11
  5. Step 5: Solve for x
    x = 45,059,372.11/7,265.15
  6. Step 6: Final answer
    x = 6,202.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.