Home / 7,786.98-11,680.56-1,943.64

Finding the Fourth Proportional to 7,786.98, 11,680.56 and 1,943.64

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Solution

The fourth proportional to 7,786.98, 11,680.56 and 1,943.64 is: 2,915.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.98 : 11,680.56 = 1,943.64 : x
  2. Step 2: Convert to fraction form
    7,786.98/11,680.56 = 1,943.64/x
  3. Step 3: Cross multiply
    7,786.98x = 11,680.56 × 1,943.64
  4. Step 4: Simplify right side
    7,786.98x = 22,702,803.64
  5. Step 5: Solve for x
    x = 22,702,803.64/7,786.98
  6. Step 6: Final answer
    x = 2,915.48

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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.