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Finding the Fourth Proportional to 11,197.58, 15,450.03 and 9,411.84

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Solution

The fourth proportional to 11,197.58, 15,450.03 and 9,411.84 is: 12,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,197.58 : 15,450.03 = 9,411.84 : x
  2. Step 2: Convert to fraction form
    11,197.58/15,450.03 = 9,411.84/x
  3. Step 3: Cross multiply
    11,197.58x = 15,450.03 × 9,411.84
  4. Step 4: Simplify right side
    11,197.58x = 145,413,210.36
  5. Step 5: Solve for x
    x = 145,413,210.36/11,197.58
  6. Step 6: Final answer
    x = 12,986.13

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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.