Home / 9,194.40-12,688.44-5,215.44

Finding the Fourth Proportional to 9,194.40, 12,688.44 and 5,215.44

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Solution

The fourth proportional to 9,194.40, 12,688.44 and 5,215.44 is: 7,197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,194.40 : 12,688.44 = 5,215.44 : x
  2. Step 2: Convert to fraction form
    9,194.40/12,688.44 = 5,215.44/x
  3. Step 3: Cross multiply
    9,194.40x = 12,688.44 × 5,215.44
  4. Step 4: Simplify right side
    9,194.40x = 66,175,797.51
  5. Step 5: Solve for x
    x = 66,175,797.51/9,194.40
  6. Step 6: Final answer
    x = 7,197.40

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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.