Home / 7,986.72-11,019.84-4,798.56

Finding the Fourth Proportional to 7,986.72, 11,019.84 and 4,798.56

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Solution

The fourth proportional to 7,986.72, 11,019.84 and 4,798.56 is: 6,620.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.72 : 11,019.84 = 4,798.56 : x
  2. Step 2: Convert to fraction form
    7,986.72/11,019.84 = 4,798.56/x
  3. Step 3: Cross multiply
    7,986.72x = 11,019.84 × 4,798.56
  4. Step 4: Simplify right side
    7,986.72x = 52,879,363.43
  5. Step 5: Solve for x
    x = 52,879,363.43/7,986.72
  6. Step 6: Final answer
    x = 6,620.91

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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.