Home / 12,133.55-18,200.35-3,368.49

Finding the Fourth Proportional to 12,133.55, 18,200.35 and 3,368.49

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Solution

The fourth proportional to 12,133.55, 18,200.35 and 3,368.49 is: 5,052.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.55 : 18,200.35 = 3,368.49 : x
  2. Step 2: Convert to fraction form
    12,133.55/18,200.35 = 3,368.49/x
  3. Step 3: Cross multiply
    12,133.55x = 18,200.35 × 3,368.49
  4. Step 4: Simplify right side
    12,133.55x = 61,307,613.98
  5. Step 5: Solve for x
    x = 61,307,613.98/12,133.55
  6. Step 6: Final answer
    x = 5,052.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.