Home / 12,861.79-19,296.34-4,097.38

Finding the Fourth Proportional to 12,861.79, 19,296.34 and 4,097.38

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Solution

The fourth proportional to 12,861.79, 19,296.34 and 4,097.38 is: 6,147.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.79 : 19,296.34 = 4,097.38 : x
  2. Step 2: Convert to fraction form
    12,861.79/19,296.34 = 4,097.38/x
  3. Step 3: Cross multiply
    12,861.79x = 19,296.34 × 4,097.38
  4. Step 4: Simplify right side
    12,861.79x = 79,064,368.86
  5. Step 5: Solve for x
    x = 79,064,368.86/12,861.79
  6. Step 6: Final answer
    x = 6,147.23

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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.