Home / 7,986.94-11,021.95-4,631.70

Finding the Fourth Proportional to 7,986.94, 11,021.95 and 4,631.70

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Solution

The fourth proportional to 7,986.94, 11,021.95 and 4,631.70 is: 6,391.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.94 : 11,021.95 = 4,631.70 : x
  2. Step 2: Convert to fraction form
    7,986.94/11,021.95 = 4,631.70/x
  3. Step 3: Cross multiply
    7,986.94x = 11,021.95 × 4,631.70
  4. Step 4: Simplify right side
    7,986.94x = 51,050,365.82
  5. Step 5: Solve for x
    x = 51,050,365.82/7,986.94
  6. Step 6: Final answer
    x = 6,391.73

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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.