Home / 7,220.73-9,965.27-4,387.45

Finding the Fourth Proportional to 7,220.73, 9,965.27 and 4,387.45

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Solution

The fourth proportional to 7,220.73, 9,965.27 and 4,387.45 is: 6,055.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.73 : 9,965.27 = 4,387.45 : x
  2. Step 2: Convert to fraction form
    7,220.73/9,965.27 = 4,387.45/x
  3. Step 3: Cross multiply
    7,220.73x = 9,965.27 × 4,387.45
  4. Step 4: Simplify right side
    7,220.73x = 43,722,109.92
  5. Step 5: Solve for x
    x = 43,722,109.92/7,220.73
  6. Step 6: Final answer
    x = 6,055.08

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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.