Home / 11,731.48-16,188.60-6,425.20

Finding the Fourth Proportional to 11,731.48, 16,188.60 and 6,425.20

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Solution

The fourth proportional to 11,731.48, 16,188.60 and 6,425.20 is: 8,866.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,731.48 : 16,188.60 = 6,425.20 : x
  2. Step 2: Convert to fraction form
    11,731.48/16,188.60 = 6,425.20/x
  3. Step 3: Cross multiply
    11,731.48x = 16,188.60 × 6,425.20
  4. Step 4: Simplify right side
    11,731.48x = 104,014,992.72
  5. Step 5: Solve for x
    x = 104,014,992.72/11,731.48
  6. Step 6: Final answer
    x = 8,866.31

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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.