Home / 7,839.92-11,763.90-5,209.25

Finding the Fourth Proportional to 7,839.92, 11,763.90 and 5,209.25

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Solution

The fourth proportional to 7,839.92, 11,763.90 and 5,209.25 is: 7,816.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.92 : 11,763.90 = 5,209.25 : x
  2. Step 2: Convert to fraction form
    7,839.92/11,763.90 = 5,209.25/x
  3. Step 3: Cross multiply
    7,839.92x = 11,763.90 × 5,209.25
  4. Step 4: Simplify right side
    7,839.92x = 61,281,037.26
  5. Step 5: Solve for x
    x = 61,281,037.26/7,839.92
  6. Step 6: Final answer
    x = 7,816.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.