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Finding the Fourth Proportional to 11,571.76, 15,968.88 and 6,535.89

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Solution

The fourth proportional to 11,571.76, 15,968.88 and 6,535.89 is: 9,019.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,571.76 : 15,968.88 = 6,535.89 : x
  2. Step 2: Convert to fraction form
    11,571.76/15,968.88 = 6,535.89/x
  3. Step 3: Cross multiply
    11,571.76x = 15,968.88 × 6,535.89
  4. Step 4: Simplify right side
    11,571.76x = 104,370,843.10
  5. Step 5: Solve for x
    x = 104,370,843.10/11,571.76
  6. Step 6: Final answer
    x = 9,019.44

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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.