Home / 13,647.44-18,833.28-7,986.08

Finding the Fourth Proportional to 13,647.44, 18,833.28 and 7,986.08

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Solution

The fourth proportional to 13,647.44, 18,833.28 and 7,986.08 is: 11,020.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.44 : 18,833.28 = 7,986.08 : x
  2. Step 2: Convert to fraction form
    13,647.44/18,833.28 = 7,986.08/x
  3. Step 3: Cross multiply
    13,647.44x = 18,833.28 × 7,986.08
  4. Step 4: Simplify right side
    13,647.44x = 150,404,080.74
  5. Step 5: Solve for x
    x = 150,404,080.74/13,647.44
  6. Step 6: Final answer
    x = 11,020.68

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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.