Home / 12,629.57-17,428.94-6,964.55

Finding the Fourth Proportional to 12,629.57, 17,428.94 and 6,964.55

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Solution

The fourth proportional to 12,629.57, 17,428.94 and 6,964.55 is: 9,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.57 : 17,428.94 = 6,964.55 : x
  2. Step 2: Convert to fraction form
    12,629.57/17,428.94 = 6,964.55/x
  3. Step 3: Cross multiply
    12,629.57x = 17,428.94 × 6,964.55
  4. Step 4: Simplify right side
    12,629.57x = 121,384,602.11
  5. Step 5: Solve for x
    x = 121,384,602.11/12,629.57
  6. Step 6: Final answer
    x = 9,611.15

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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.