Home / 8,261.12-11,399.64-4,723.76

Finding the Fourth Proportional to 8,261.12, 11,399.64 and 4,723.76

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Solution

The fourth proportional to 8,261.12, 11,399.64 and 4,723.76 is: 6,518.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.12 : 11,399.64 = 4,723.76 : x
  2. Step 2: Convert to fraction form
    8,261.12/11,399.64 = 4,723.76/x
  3. Step 3: Cross multiply
    8,261.12x = 11,399.64 × 4,723.76
  4. Step 4: Simplify right side
    8,261.12x = 53,849,163.45
  5. Step 5: Solve for x
    x = 53,849,163.45/8,261.12
  6. Step 6: Final answer
    x = 6,518.39

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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.