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Finding the Fourth Proportional to 7,755.41, 11,638.33 and 7,726.87

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Solution

The fourth proportional to 7,755.41, 11,638.33 and 7,726.87 is: 11,595.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.41 : 11,638.33 = 7,726.87 : x
  2. Step 2: Convert to fraction form
    7,755.41/11,638.33 = 7,726.87/x
  3. Step 3: Cross multiply
    7,755.41x = 11,638.33 × 7,726.87
  4. Step 4: Simplify right side
    7,755.41x = 89,927,858.16
  5. Step 5: Solve for x
    x = 89,927,858.16/7,755.41
  6. Step 6: Final answer
    x = 11,595.50

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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.