Home / 12,111.68-16,714.62-6,806.49

Finding the Fourth Proportional to 12,111.68, 16,714.62 and 6,806.49

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Solution

The fourth proportional to 12,111.68, 16,714.62 and 6,806.49 is: 9,393.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111.68 : 16,714.62 = 6,806.49 : x
  2. Step 2: Convert to fraction form
    12,111.68/16,714.62 = 6,806.49/x
  3. Step 3: Cross multiply
    12,111.68x = 16,714.62 × 6,806.49
  4. Step 4: Simplify right side
    12,111.68x = 113,767,776.28
  5. Step 5: Solve for x
    x = 113,767,776.28/12,111.68
  6. Step 6: Final answer
    x = 9,393.23

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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.