Home / 12,629.66-17,429.92-6,964.92

Finding the Fourth Proportional to 12,629.66, 17,429.92 and 6,964.92

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Solution

The fourth proportional to 12,629.66, 17,429.92 and 6,964.92 is: 9,612.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.66 : 17,429.92 = 6,964.92 : x
  2. Step 2: Convert to fraction form
    12,629.66/17,429.92 = 6,964.92/x
  3. Step 3: Cross multiply
    12,629.66x = 17,429.92 × 6,964.92
  4. Step 4: Simplify right side
    12,629.66x = 121,397,980.99
  5. Step 5: Solve for x
    x = 121,397,980.99/12,629.66
  6. Step 6: Final answer
    x = 9,612.14

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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.