Home / 12,133.98-18,205.35-4,237.65

Finding the Fourth Proportional to 12,133.98, 18,205.35 and 4,237.65

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Solution

The fourth proportional to 12,133.98, 18,205.35 and 4,237.65 is: 6,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.98 : 18,205.35 = 4,237.65 : x
  2. Step 2: Convert to fraction form
    12,133.98/18,205.35 = 4,237.65/x
  3. Step 3: Cross multiply
    12,133.98x = 18,205.35 × 4,237.65
  4. Step 4: Simplify right side
    12,133.98x = 77,147,885.54
  5. Step 5: Solve for x
    x = 77,147,885.54/12,133.98
  6. Step 6: Final answer
    x = 6,358.00

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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.