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Finding the Fourth Proportional to 9,558.90, 13,202.48 and 8,718.12

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Solution

The fourth proportional to 9,558.90, 13,202.48 and 8,718.12 is: 12,041.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,558.90 : 13,202.48 = 8,718.12 : x
  2. Step 2: Convert to fraction form
    9,558.90/13,202.48 = 8,718.12/x
  3. Step 3: Cross multiply
    9,558.90x = 13,202.48 × 8,718.12
  4. Step 4: Simplify right side
    9,558.90x = 115,100,761.35
  5. Step 5: Solve for x
    x = 115,100,761.35/9,558.90
  6. Step 6: Final answer
    x = 12,041.21

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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.