Home / 12,444.44-17,168.36-7,138.13

Finding the Fourth Proportional to 12,444.44, 17,168.36 and 7,138.13

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Solution

The fourth proportional to 12,444.44, 17,168.36 and 7,138.13 is: 9,847.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.44 : 17,168.36 = 7,138.13 : x
  2. Step 2: Convert to fraction form
    12,444.44/17,168.36 = 7,138.13/x
  3. Step 3: Cross multiply
    12,444.44x = 17,168.36 × 7,138.13
  4. Step 4: Simplify right side
    12,444.44x = 122,549,864.03
  5. Step 5: Solve for x
    x = 122,549,864.03/12,444.44
  6. Step 6: Final answer
    x = 9,847.76

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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.