Home / 7,986.34-11,021.26-4,629.40

Finding the Fourth Proportional to 7,986.34, 11,021.26 and 4,629.40

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Solution

The fourth proportional to 7,986.34, 11,021.26 and 4,629.40 is: 6,388.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.34 : 11,021.26 = 4,629.40 : x
  2. Step 2: Convert to fraction form
    7,986.34/11,021.26 = 4,629.40/x
  3. Step 3: Cross multiply
    7,986.34x = 11,021.26 × 4,629.40
  4. Step 4: Simplify right side
    7,986.34x = 51,021,821.04
  5. Step 5: Solve for x
    x = 51,021,821.04/7,986.34
  6. Step 6: Final answer
    x = 6,388.64

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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.