Home / 6,917.36-10,376.22-1,986.80

Finding the Fourth Proportional to 6,917.36, 10,376.22 and 1,986.80

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Solution

The fourth proportional to 6,917.36, 10,376.22 and 1,986.80 is: 2,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.36 : 10,376.22 = 1,986.80 : x
  2. Step 2: Convert to fraction form
    6,917.36/10,376.22 = 1,986.80/x
  3. Step 3: Cross multiply
    6,917.36x = 10,376.22 × 1,986.80
  4. Step 4: Simplify right side
    6,917.36x = 20,615,473.90
  5. Step 5: Solve for x
    x = 20,615,473.90/6,917.36
  6. Step 6: Final answer
    x = 2,980.25

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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.