Home / 8,868.78-13,308.34-4,923.36

Finding the Fourth Proportional to 8,868.78, 13,308.34 and 4,923.36

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Solution

The fourth proportional to 8,868.78, 13,308.34 and 4,923.36 is: 7,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.78 : 13,308.34 = 4,923.36 : x
  2. Step 2: Convert to fraction form
    8,868.78/13,308.34 = 4,923.36/x
  3. Step 3: Cross multiply
    8,868.78x = 13,308.34 × 4,923.36
  4. Step 4: Simplify right side
    8,868.78x = 65,521,682.28
  5. Step 5: Solve for x
    x = 65,521,682.28/8,868.78
  6. Step 6: Final answer
    x = 7,387.91

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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.