Home / 19,650.63-27,113.67-11,691.30

Finding the Fourth Proportional to 19,650.63, 27,113.67 and 11,691.30

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Solution

The fourth proportional to 19,650.63, 27,113.67 and 11,691.30 is: 16,131.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,650.63 : 27,113.67 = 11,691.30 : x
  2. Step 2: Convert to fraction form
    19,650.63/27,113.67 = 11,691.30/x
  3. Step 3: Cross multiply
    19,650.63x = 27,113.67 × 11,691.30
  4. Step 4: Simplify right side
    19,650.63x = 316,994,151.75
  5. Step 5: Solve for x
    x = 316,994,151.75/19,650.63
  6. Step 6: Final answer
    x = 16,131.50

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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.