Home / 12,697.76-19,023.60-9,956

Finding the Fourth Proportional to 12,697.76, 19,023.60 and 9,956

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Solution

The fourth proportional to 12,697.76, 19,023.60 and 9,956 is: 14,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697.76 : 19,023.60 = 9,956 : x
  2. Step 2: Convert to fraction form
    12,697.76/19,023.60 = 9,956/x
  3. Step 3: Cross multiply
    12,697.76x = 19,023.60 × 9,956
  4. Step 4: Simplify right side
    12,697.76x = 189,398,961.60
  5. Step 5: Solve for x
    x = 189,398,961.60/12,697.76
  6. Step 6: Final answer
    x = 14,915.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.