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Finding the Fourth Proportional to 6,726.78, 10,021.19 and 6,555.06

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Solution

The fourth proportional to 6,726.78, 10,021.19 and 6,555.06 is: 9,765.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,726.78 : 10,021.19 = 6,555.06 : x
  2. Step 2: Convert to fraction form
    6,726.78/10,021.19 = 6,555.06/x
  3. Step 3: Cross multiply
    6,726.78x = 10,021.19 × 6,555.06
  4. Step 4: Simplify right side
    6,726.78x = 65,689,468.95
  5. Step 5: Solve for x
    x = 65,689,468.95/6,726.78
  6. Step 6: Final answer
    x = 9,765.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.