Home / 12,491.21-17,237.57-6,825.98

Finding the Fourth Proportional to 12,491.21, 17,237.57 and 6,825.98

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Solution

The fourth proportional to 12,491.21, 17,237.57 and 6,825.98 is: 9,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.21 : 17,237.57 = 6,825.98 : x
  2. Step 2: Convert to fraction form
    12,491.21/17,237.57 = 6,825.98/x
  3. Step 3: Cross multiply
    12,491.21x = 17,237.57 × 6,825.98
  4. Step 4: Simplify right side
    12,491.21x = 117,663,238.95
  5. Step 5: Solve for x
    x = 117,663,238.95/12,491.21
  6. Step 6: Final answer
    x = 9,419.68

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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.