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Finding the Fourth Proportional to 19,349, 26,707.32 and 12,635.66

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Solution

The fourth proportional to 19,349, 26,707.32 and 12,635.66 is: 17,440.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,349 : 26,707.32 = 12,635.66 : x
  2. Step 2: Convert to fraction form
    19,349/26,707.32 = 12,635.66/x
  3. Step 3: Cross multiply
    19,349x = 26,707.32 × 12,635.66
  4. Step 4: Simplify right side
    19,349x = 337,464,615.03
  5. Step 5: Solve for x
    x = 337,464,615.03/19,349
  6. Step 6: Final answer
    x = 17,440.93

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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.