Home / 6,912.74-9,539.27-3,887.70

Finding the Fourth Proportional to 6,912.74, 9,539.27 and 3,887.70

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Solution

The fourth proportional to 6,912.74, 9,539.27 and 3,887.70 is: 5,364.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.74 : 9,539.27 = 3,887.70 : x
  2. Step 2: Convert to fraction form
    6,912.74/9,539.27 = 3,887.70/x
  3. Step 3: Cross multiply
    6,912.74x = 9,539.27 × 3,887.70
  4. Step 4: Simplify right side
    6,912.74x = 37,085,779.35
  5. Step 5: Solve for x
    x = 37,085,779.35/6,912.74
  6. Step 6: Final answer
    x = 5,364.84

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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.