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Finding the Fourth Proportional to 12,804.78, 19,193.28 and 6,556.22

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Solution

The fourth proportional to 12,804.78, 19,193.28 and 6,556.22 is: 9,827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.78 : 19,193.28 = 6,556.22 : x
  2. Step 2: Convert to fraction form
    12,804.78/19,193.28 = 6,556.22/x
  3. Step 3: Cross multiply
    12,804.78x = 19,193.28 × 6,556.22
  4. Step 4: Simplify right side
    12,804.78x = 125,835,366.20
  5. Step 5: Solve for x
    x = 125,835,366.20/12,804.78
  6. Step 6: Final answer
    x = 9,827.22

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1.5x scale

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.