Home / 8,303.28-11,463.84-5,163.72

Finding the Fourth Proportional to 8,303.28, 11,463.84 and 5,163.72

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Solution

The fourth proportional to 8,303.28, 11,463.84 and 5,163.72 is: 7,129.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303.28 : 11,463.84 = 5,163.72 : x
  2. Step 2: Convert to fraction form
    8,303.28/11,463.84 = 5,163.72/x
  3. Step 3: Cross multiply
    8,303.28x = 11,463.84 × 5,163.72
  4. Step 4: Simplify right side
    8,303.28x = 59,196,059.88
  5. Step 5: Solve for x
    x = 59,196,059.88/8,303.28
  6. Step 6: Final answer
    x = 7,129.24

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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.