Home / 9,634.80-13,280.64-7,863.36

Finding the Fourth Proportional to 9,634.80, 13,280.64 and 7,863.36

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Solution

The fourth proportional to 9,634.80, 13,280.64 and 7,863.36 is: 10,838.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,634.80 : 13,280.64 = 7,863.36 : x
  2. Step 2: Convert to fraction form
    9,634.80/13,280.64 = 7,863.36/x
  3. Step 3: Cross multiply
    9,634.80x = 13,280.64 × 7,863.36
  4. Step 4: Simplify right side
    9,634.80x = 104,430,453.35
  5. Step 5: Solve for x
    x = 104,430,453.35/9,634.80
  6. Step 6: Final answer
    x = 10,838.88

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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.