Home / 12,186.27-16,818.19-7,405.11

Finding the Fourth Proportional to 12,186.27, 16,818.19 and 7,405.11

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Solution

The fourth proportional to 12,186.27, 16,818.19 and 7,405.11 is: 10,219.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.27 : 16,818.19 = 7,405.11 : x
  2. Step 2: Convert to fraction form
    12,186.27/16,818.19 = 7,405.11/x
  3. Step 3: Cross multiply
    12,186.27x = 16,818.19 × 7,405.11
  4. Step 4: Simplify right side
    12,186.27x = 124,540,528.44
  5. Step 5: Solve for x
    x = 124,540,528.44/12,186.27
  6. Step 6: Final answer
    x = 10,219.74

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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.