Home / 7,921.46-10,932.84-4,518.47

Finding the Fourth Proportional to 7,921.46, 10,932.84 and 4,518.47

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Solution

The fourth proportional to 7,921.46, 10,932.84 and 4,518.47 is: 6,236.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.46 : 10,932.84 = 4,518.47 : x
  2. Step 2: Convert to fraction form
    7,921.46/10,932.84 = 4,518.47/x
  3. Step 3: Cross multiply
    7,921.46x = 10,932.84 × 4,518.47
  4. Step 4: Simplify right side
    7,921.46x = 49,399,709.55
  5. Step 5: Solve for x
    x = 49,399,709.55/7,921.46
  6. Step 6: Final answer
    x = 6,236.19

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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.