Home / 11,163.94-15,407.18-6,129.01

Finding the Fourth Proportional to 11,163.94, 15,407.18 and 6,129.01

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Solution

The fourth proportional to 11,163.94, 15,407.18 and 6,129.01 is: 8,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.94 : 15,407.18 = 6,129.01 : x
  2. Step 2: Convert to fraction form
    11,163.94/15,407.18 = 6,129.01/x
  3. Step 3: Cross multiply
    11,163.94x = 15,407.18 × 6,129.01
  4. Step 4: Simplify right side
    11,163.94x = 94,430,760.29
  5. Step 5: Solve for x
    x = 94,430,760.29/11,163.94
  6. Step 6: Final answer
    x = 8,458.55

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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.