Home / 7,678.56-11,503.26-3,975.24

Finding the Fourth Proportional to 7,678.56, 11,503.26 and 3,975.24

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Solution

The fourth proportional to 7,678.56, 11,503.26 and 3,975.24 is: 5,955.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.56 : 11,503.26 = 3,975.24 : x
  2. Step 2: Convert to fraction form
    7,678.56/11,503.26 = 3,975.24/x
  3. Step 3: Cross multiply
    7,678.56x = 11,503.26 × 3,975.24
  4. Step 4: Simplify right side
    7,678.56x = 45,728,219.28
  5. Step 5: Solve for x
    x = 45,728,219.28/7,678.56
  6. Step 6: Final answer
    x = 5,955.31

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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.