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Finding the Fourth Proportional to 8,310.66, 11,465.19 and 5,325.54

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Solution

The fourth proportional to 8,310.66, 11,465.19 and 5,325.54 is: 7,346.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.66 : 11,465.19 = 5,325.54 : x
  2. Step 2: Convert to fraction form
    8,310.66/11,465.19 = 5,325.54/x
  3. Step 3: Cross multiply
    8,310.66x = 11,465.19 × 5,325.54
  4. Step 4: Simplify right side
    8,310.66x = 61,058,327.95
  5. Step 5: Solve for x
    x = 61,058,327.95/8,310.66
  6. Step 6: Final answer
    x = 7,346.99

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1.5x scale

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.