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Finding the Fourth Proportional to 8,943.48, 13,495.65 and 8,634.60

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Solution

The fourth proportional to 8,943.48, 13,495.65 and 8,634.60 is: 13,029.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.48 : 13,495.65 = 8,634.60 : x
  2. Step 2: Convert to fraction form
    8,943.48/13,495.65 = 8,634.60/x
  3. Step 3: Cross multiply
    8,943.48x = 13,495.65 × 8,634.60
  4. Step 4: Simplify right side
    8,943.48x = 116,529,539.49
  5. Step 5: Solve for x
    x = 116,529,539.49/8,943.48
  6. Step 6: Final answer
    x = 13,029.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.