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Finding the Fourth Proportional to 8,518.37, 11,755.07 and 4,741.40

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Solution

The fourth proportional to 8,518.37, 11,755.07 and 4,741.40 is: 6,542.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.37 : 11,755.07 = 4,741.40 : x
  2. Step 2: Convert to fraction form
    8,518.37/11,755.07 = 4,741.40/x
  3. Step 3: Cross multiply
    8,518.37x = 11,755.07 × 4,741.40
  4. Step 4: Simplify right side
    8,518.37x = 55,735,533.82
  5. Step 5: Solve for x
    x = 55,735,533.82/8,518.37
  6. Step 6: Final answer
    x = 6,542.98

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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.