Home / 12,418.49-17,137.73-7,113.77

Finding the Fourth Proportional to 12,418.49, 17,137.73 and 7,113.77

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Solution

The fourth proportional to 12,418.49, 17,137.73 and 7,113.77 is: 9,817.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.49 : 17,137.73 = 7,113.77 : x
  2. Step 2: Convert to fraction form
    12,418.49/17,137.73 = 7,113.77/x
  3. Step 3: Cross multiply
    12,418.49x = 17,137.73 × 7,113.77
  4. Step 4: Simplify right side
    12,418.49x = 121,913,833.97
  5. Step 5: Solve for x
    x = 121,913,833.97/12,418.49
  6. Step 6: Final answer
    x = 9,817.12

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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.