Home / 11,200.14-15,453.98-7,220.66

Finding the Fourth Proportional to 11,200.14, 15,453.98 and 7,220.66

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Solution

The fourth proportional to 11,200.14, 15,453.98 and 7,220.66 is: 9,963.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,200.14 : 15,453.98 = 7,220.66 : x
  2. Step 2: Convert to fraction form
    11,200.14/15,453.98 = 7,220.66/x
  3. Step 3: Cross multiply
    11,200.14x = 15,453.98 × 7,220.66
  4. Step 4: Simplify right side
    11,200.14x = 111,587,935.23
  5. Step 5: Solve for x
    x = 111,587,935.23/11,200.14
  6. Step 6: Final answer
    x = 9,963.08

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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.