Home / 11,984.88-16,527.96-7,791.60

Finding the Fourth Proportional to 11,984.88, 16,527.96 and 7,791.60

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Solution

The fourth proportional to 11,984.88, 16,527.96 and 7,791.60 is: 10,745.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.88 : 16,527.96 = 7,791.60 : x
  2. Step 2: Convert to fraction form
    11,984.88/16,527.96 = 7,791.60/x
  3. Step 3: Cross multiply
    11,984.88x = 16,527.96 × 7,791.60
  4. Step 4: Simplify right side
    11,984.88x = 128,779,253.14
  5. Step 5: Solve for x
    x = 128,779,253.14/11,984.88
  6. Step 6: Final answer
    x = 10,745.14

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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.