Home / 7,763.85-11,643.83-3,319.32

Finding the Fourth Proportional to 7,763.85, 11,643.83 and 3,319.32

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Solution

The fourth proportional to 7,763.85, 11,643.83 and 3,319.32 is: 4,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.85 : 11,643.83 = 3,319.32 : x
  2. Step 2: Convert to fraction form
    7,763.85/11,643.83 = 3,319.32/x
  3. Step 3: Cross multiply
    7,763.85x = 11,643.83 × 3,319.32
  4. Step 4: Simplify right side
    7,763.85x = 38,649,597.80
  5. Step 5: Solve for x
    x = 38,649,597.80/7,763.85
  6. Step 6: Final answer
    x = 4,978.15

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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.