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Finding the Fourth Proportional to 8,955.69, 12,359.01 and 4,922.70

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Solution

The fourth proportional to 8,955.69, 12,359.01 and 4,922.70 is: 6,793.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.69 : 12,359.01 = 4,922.70 : x
  2. Step 2: Convert to fraction form
    8,955.69/12,359.01 = 4,922.70/x
  3. Step 3: Cross multiply
    8,955.69x = 12,359.01 × 4,922.70
  4. Step 4: Simplify right side
    8,955.69x = 60,839,698.53
  5. Step 5: Solve for x
    x = 60,839,698.53/8,955.69
  6. Step 6: Final answer
    x = 6,793.41

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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.