Home / 12,772.96-17,626.41-7,107.60

Finding the Fourth Proportional to 12,772.96, 17,626.41 and 7,107.60

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Solution

The fourth proportional to 12,772.96, 17,626.41 and 7,107.60 is: 9,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.96 : 17,626.41 = 7,107.60 : x
  2. Step 2: Convert to fraction form
    12,772.96/17,626.41 = 7,107.60/x
  3. Step 3: Cross multiply
    12,772.96x = 17,626.41 × 7,107.60
  4. Step 4: Simplify right side
    12,772.96x = 125,281,471.72
  5. Step 5: Solve for x
    x = 125,281,471.72/12,772.96
  6. Step 6: Final answer
    x = 9,808.34

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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.