Home / 7,986.79-11,021.29-4,629.34

Finding the Fourth Proportional to 7,986.79, 11,021.29 and 4,629.34

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Solution

The fourth proportional to 7,986.79, 11,021.29 and 4,629.34 is: 6,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.79 : 11,021.29 = 4,629.34 : x
  2. Step 2: Convert to fraction form
    7,986.79/11,021.29 = 4,629.34/x
  3. Step 3: Cross multiply
    7,986.79x = 11,021.29 × 4,629.34
  4. Step 4: Simplify right side
    7,986.79x = 51,021,298.65
  5. Step 5: Solve for x
    x = 51,021,298.65/7,986.79
  6. Step 6: Final answer
    x = 6,388.21

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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.