Home / 8,629.21-12,933.36-6,126.46

Finding the Fourth Proportional to 8,629.21, 12,933.36 and 6,126.46

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Solution

The fourth proportional to 8,629.21, 12,933.36 and 6,126.46 is: 9,182.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.21 : 12,933.36 = 6,126.46 : x
  2. Step 2: Convert to fraction form
    8,629.21/12,933.36 = 6,126.46/x
  3. Step 3: Cross multiply
    8,629.21x = 12,933.36 × 6,126.46
  4. Step 4: Simplify right side
    8,629.21x = 79,235,712.71
  5. Step 5: Solve for x
    x = 79,235,712.71/8,629.21
  6. Step 6: Final answer
    x = 9,182.27

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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.