Home / 12,236.49-16,886.15-6,859.09

Finding the Fourth Proportional to 12,236.49, 16,886.15 and 6,859.09

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Solution

The fourth proportional to 12,236.49, 16,886.15 and 6,859.09 is: 9,465.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.49 : 16,886.15 = 6,859.09 : x
  2. Step 2: Convert to fraction form
    12,236.49/16,886.15 = 6,859.09/x
  3. Step 3: Cross multiply
    12,236.49x = 16,886.15 × 6,859.09
  4. Step 4: Simplify right side
    12,236.49x = 115,823,639.59
  5. Step 5: Solve for x
    x = 115,823,639.59/12,236.49
  6. Step 6: Final answer
    x = 9,465.43

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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.