Home / 8,698.28-12,005.16-5,163.44

Finding the Fourth Proportional to 8,698.28, 12,005.16 and 5,163.44

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Solution

The fourth proportional to 8,698.28, 12,005.16 and 5,163.44 is: 7,126.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.28 : 12,005.16 = 5,163.44 : x
  2. Step 2: Convert to fraction form
    8,698.28/12,005.16 = 5,163.44/x
  3. Step 3: Cross multiply
    8,698.28x = 12,005.16 × 5,163.44
  4. Step 4: Simplify right side
    8,698.28x = 61,987,923.35
  5. Step 5: Solve for x
    x = 61,987,923.35/8,698.28
  6. Step 6: Final answer
    x = 7,126.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.