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Finding the Fourth Proportional to 7,149.76, 9,858.09 and 6,153.33

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Solution

The fourth proportional to 7,149.76, 9,858.09 and 6,153.33 is: 8,484.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.76 : 9,858.09 = 6,153.33 : x
  2. Step 2: Convert to fraction form
    7,149.76/9,858.09 = 6,153.33/x
  3. Step 3: Cross multiply
    7,149.76x = 9,858.09 × 6,153.33
  4. Step 4: Simplify right side
    7,149.76x = 60,660,080.94
  5. Step 5: Solve for x
    x = 60,660,080.94/7,149.76
  6. Step 6: Final answer
    x = 8,484.21

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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.