Home / 12,133.40-18,200.09-3,368.31

Finding the Fourth Proportional to 12,133.40, 18,200.09 and 3,368.31

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Solution

The fourth proportional to 12,133.40, 18,200.09 and 3,368.31 is: 5,052.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.40 : 18,200.09 = 3,368.31 : x
  2. Step 2: Convert to fraction form
    12,133.40/18,200.09 = 3,368.31/x
  3. Step 3: Cross multiply
    12,133.40x = 18,200.09 × 3,368.31
  4. Step 4: Simplify right side
    12,133.40x = 61,303,545.15
  5. Step 5: Solve for x
    x = 61,303,545.15/12,133.40
  6. Step 6: Final answer
    x = 5,052.46

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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.