Home / 9,079.36-12,529.20-5,548.48

Finding the Fourth Proportional to 9,079.36, 12,529.20 and 5,548.48

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Solution

The fourth proportional to 9,079.36, 12,529.20 and 5,548.48 is: 7,656.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,079.36 : 12,529.20 = 5,548.48 : x
  2. Step 2: Convert to fraction form
    9,079.36/12,529.20 = 5,548.48/x
  3. Step 3: Cross multiply
    9,079.36x = 12,529.20 × 5,548.48
  4. Step 4: Simplify right side
    9,079.36x = 69,518,015.62
  5. Step 5: Solve for x
    x = 69,518,015.62/9,079.36
  6. Step 6: Final answer
    x = 7,656.71

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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.