Home / 6,929.99-9,563.58-3,945.75

Finding the Fourth Proportional to 6,929.99, 9,563.58 and 3,945.75

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Solution

The fourth proportional to 6,929.99, 9,563.58 and 3,945.75 is: 5,445.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.99 : 9,563.58 = 3,945.75 : x
  2. Step 2: Convert to fraction form
    6,929.99/9,563.58 = 3,945.75/x
  3. Step 3: Cross multiply
    6,929.99x = 9,563.58 × 3,945.75
  4. Step 4: Simplify right side
    6,929.99x = 37,735,495.79
  5. Step 5: Solve for x
    x = 37,735,495.79/6,929.99
  6. Step 6: Final answer
    x = 5,445.25

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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.