Home / 12,629.96-17,430.12-6,964.70

Finding the Fourth Proportional to 12,629.96, 17,430.12 and 6,964.70

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Solution

The fourth proportional to 12,629.96, 17,430.12 and 6,964.70 is: 9,611.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.96 : 17,430.12 = 6,964.70 : x
  2. Step 2: Convert to fraction form
    12,629.96/17,430.12 = 6,964.70/x
  3. Step 3: Cross multiply
    12,629.96x = 17,430.12 × 6,964.70
  4. Step 4: Simplify right side
    12,629.96x = 121,395,523.51
  5. Step 5: Solve for x
    x = 121,395,523.51/12,629.96
  6. Step 6: Final answer
    x = 9,611.71

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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.