Home / 7,868.18-11,809.56-3,975.32

Finding the Fourth Proportional to 7,868.18, 11,809.56 and 3,975.32

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Solution

The fourth proportional to 7,868.18, 11,809.56 and 3,975.32 is: 5,966.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.18 : 11,809.56 = 3,975.32 : x
  2. Step 2: Convert to fraction form
    7,868.18/11,809.56 = 3,975.32/x
  3. Step 3: Cross multiply
    7,868.18x = 11,809.56 × 3,975.32
  4. Step 4: Simplify right side
    7,868.18x = 46,946,824.49
  5. Step 5: Solve for x
    x = 46,946,824.49/7,868.18
  6. Step 6: Final answer
    x = 5,966.67

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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.