Home / 7,868.96-11,809.14-3,973.64

Finding the Fourth Proportional to 7,868.96, 11,809.14 and 3,973.64

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Solution

The fourth proportional to 7,868.96, 11,809.14 and 3,973.64 is: 5,963.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.96 : 11,809.14 = 3,973.64 : x
  2. Step 2: Convert to fraction form
    7,868.96/11,809.14 = 3,973.64/x
  3. Step 3: Cross multiply
    7,868.96x = 11,809.14 × 3,973.64
  4. Step 4: Simplify right side
    7,868.96x = 46,925,271.07
  5. Step 5: Solve for x
    x = 46,925,271.07/7,868.96
  6. Step 6: Final answer
    x = 5,963.34

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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.