Home / 7,220.13-9,963.77-4,076.31

Finding the Fourth Proportional to 7,220.13, 9,963.77 and 4,076.31

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Solution

The fourth proportional to 7,220.13, 9,963.77 and 4,076.31 is: 5,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.13 : 9,963.77 = 4,076.31 : x
  2. Step 2: Convert to fraction form
    7,220.13/9,963.77 = 4,076.31/x
  3. Step 3: Cross multiply
    7,220.13x = 9,963.77 × 4,076.31
  4. Step 4: Simplify right side
    7,220.13x = 40,615,415.29
  5. Step 5: Solve for x
    x = 40,615,415.29/7,220.13
  6. Step 6: Final answer
    x = 5,625.30

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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.