Home / 7,220.77-9,963.94-4,076.35

Finding the Fourth Proportional to 7,220.77, 9,963.94 and 4,076.35

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Solution

The fourth proportional to 7,220.77, 9,963.94 and 4,076.35 is: 5,624.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.77 : 9,963.94 = 4,076.35 : x
  2. Step 2: Convert to fraction form
    7,220.77/9,963.94 = 4,076.35/x
  3. Step 3: Cross multiply
    7,220.77x = 9,963.94 × 4,076.35
  4. Step 4: Simplify right side
    7,220.77x = 40,616,506.82
  5. Step 5: Solve for x
    x = 40,616,506.82/7,220.77
  6. Step 6: Final answer
    x = 5,624.96

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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.