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Finding the Fourth Proportional to 9,201, 12,696.58 and 5,222.28

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Solution

The fourth proportional to 9,201, 12,696.58 and 5,222.28 is: 7,206.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,201 : 12,696.58 = 5,222.28 : x
  2. Step 2: Convert to fraction form
    9,201/12,696.58 = 5,222.28/x
  3. Step 3: Cross multiply
    9,201x = 12,696.58 × 5,222.28
  4. Step 4: Simplify right side
    9,201x = 66,305,095.80
  5. Step 5: Solve for x
    x = 66,305,095.80/9,201
  6. Step 6: Final answer
    x = 7,206.29

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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.