Home / 6,738.20-10,085.70-5,269.40

Finding the Fourth Proportional to 6,738.20, 10,085.70 and 5,269.40

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Solution

The fourth proportional to 6,738.20, 10,085.70 and 5,269.40 is: 7,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,738.20 : 10,085.70 = 5,269.40 : x
  2. Step 2: Convert to fraction form
    6,738.20/10,085.70 = 5,269.40/x
  3. Step 3: Cross multiply
    6,738.20x = 10,085.70 × 5,269.40
  4. Step 4: Simplify right side
    6,738.20x = 53,145,587.58
  5. Step 5: Solve for x
    x = 53,145,587.58/6,738.20
  6. Step 6: Final answer
    x = 7,887.21

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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.