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Finding the Fourth Proportional to 6,660.33, 9,124.50 and 6,411.06

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Solution

The fourth proportional to 6,660.33, 9,124.50 and 6,411.06 is: 8,783.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.33 : 9,124.50 = 6,411.06 : x
  2. Step 2: Convert to fraction form
    6,660.33/9,124.50 = 6,411.06/x
  3. Step 3: Cross multiply
    6,660.33x = 9,124.50 × 6,411.06
  4. Step 4: Simplify right side
    6,660.33x = 58,497,716.97
  5. Step 5: Solve for x
    x = 58,497,716.97/6,660.33
  6. Step 6: Final answer
    x = 8,783.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.