Home / 12,628.33-17,428.11-6,964.23

Finding the Fourth Proportional to 12,628.33, 17,428.11 and 6,964.23

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Solution

The fourth proportional to 12,628.33, 17,428.11 and 6,964.23 is: 9,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.33 : 17,428.11 = 6,964.23 : x
  2. Step 2: Convert to fraction form
    12,628.33/17,428.11 = 6,964.23/x
  3. Step 3: Cross multiply
    12,628.33x = 17,428.11 × 6,964.23
  4. Step 4: Simplify right side
    12,628.33x = 121,373,346.89
  5. Step 5: Solve for x
    x = 121,373,346.89/12,628.33
  6. Step 6: Final answer
    x = 9,611.20

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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.