Home / 12,143.36-16,757.70-6,838.08

Finding the Fourth Proportional to 12,143.36, 16,757.70 and 6,838.08

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Solution

The fourth proportional to 12,143.36, 16,757.70 and 6,838.08 is: 9,436.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.36 : 16,757.70 = 6,838.08 : x
  2. Step 2: Convert to fraction form
    12,143.36/16,757.70 = 6,838.08/x
  3. Step 3: Cross multiply
    12,143.36x = 16,757.70 × 6,838.08
  4. Step 4: Simplify right side
    12,143.36x = 114,590,493.22
  5. Step 5: Solve for x
    x = 114,590,493.22/12,143.36
  6. Step 6: Final answer
    x = 9,436.47

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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.