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Finding the Fourth Proportional to 7,955.03, 10,969.39 and 4,969.78

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Solution

The fourth proportional to 7,955.03, 10,969.39 and 4,969.78 is: 6,852.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.03 : 10,969.39 = 4,969.78 : x
  2. Step 2: Convert to fraction form
    7,955.03/10,969.39 = 4,969.78/x
  3. Step 3: Cross multiply
    7,955.03x = 10,969.39 × 4,969.78
  4. Step 4: Simplify right side
    7,955.03x = 54,515,415.19
  5. Step 5: Solve for x
    x = 54,515,415.19/7,955.03
  6. Step 6: Final answer
    x = 6,852.95

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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.