Home / 7,972.98-10,997.88-4,986.36

Finding the Fourth Proportional to 7,972.98, 10,997.88 and 4,986.36

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Solution

The fourth proportional to 7,972.98, 10,997.88 and 4,986.36 is: 6,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.98 : 10,997.88 = 4,986.36 : x
  2. Step 2: Convert to fraction form
    7,972.98/10,997.88 = 4,986.36/x
  3. Step 3: Cross multiply
    7,972.98x = 10,997.88 × 4,986.36
  4. Step 4: Simplify right side
    7,972.98x = 54,839,370.22
  5. Step 5: Solve for x
    x = 54,839,370.22/7,972.98
  6. Step 6: Final answer
    x = 6,878.15

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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.