Home / 12,418.24-17,137.44-6,829.76

Finding the Fourth Proportional to 12,418.24, 17,137.44 and 6,829.76

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Solution

The fourth proportional to 12,418.24, 17,137.44 and 6,829.76 is: 9,425.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.24 : 17,137.44 = 6,829.76 : x
  2. Step 2: Convert to fraction form
    12,418.24/17,137.44 = 6,829.76/x
  3. Step 3: Cross multiply
    12,418.24x = 17,137.44 × 6,829.76
  4. Step 4: Simplify right side
    12,418.24x = 117,044,602.21
  5. Step 5: Solve for x
    x = 117,044,602.21/12,418.24
  6. Step 6: Final answer
    x = 9,425.22

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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.