Home / 11,992.64-16,562.75-9,129.47

Finding the Fourth Proportional to 11,992.64, 16,562.75 and 9,129.47

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Solution

The fourth proportional to 11,992.64, 16,562.75 and 9,129.47 is: 12,608.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.64 : 16,562.75 = 9,129.47 : x
  2. Step 2: Convert to fraction form
    11,992.64/16,562.75 = 9,129.47/x
  3. Step 3: Cross multiply
    11,992.64x = 16,562.75 × 9,129.47
  4. Step 4: Simplify right side
    11,992.64x = 151,209,000.78
  5. Step 5: Solve for x
    x = 151,209,000.78/11,992.64
  6. Step 6: Final answer
    x = 12,608.49

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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.