Home / 13,629.06-18,807.48-7,964.33

Finding the Fourth Proportional to 13,629.06, 18,807.48 and 7,964.33

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Solution

The fourth proportional to 13,629.06, 18,807.48 and 7,964.33 is: 10,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.06 : 18,807.48 = 7,964.33 : x
  2. Step 2: Convert to fraction form
    13,629.06/18,807.48 = 7,964.33/x
  3. Step 3: Cross multiply
    13,629.06x = 18,807.48 × 7,964.33
  4. Step 4: Simplify right side
    13,629.06x = 149,788,977.19
  5. Step 5: Solve for x
    x = 149,788,977.19/13,629.06
  6. Step 6: Final answer
    x = 10,990.41

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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.