Home / 12,180.67-18,271.86-4,282.26

Finding the Fourth Proportional to 12,180.67, 18,271.86 and 4,282.26

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Solution

The fourth proportional to 12,180.67, 18,271.86 and 4,282.26 is: 6,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.67 : 18,271.86 = 4,282.26 : x
  2. Step 2: Convert to fraction form
    12,180.67/18,271.86 = 4,282.26/x
  3. Step 3: Cross multiply
    12,180.67x = 18,271.86 × 4,282.26
  4. Step 4: Simplify right side
    12,180.67x = 78,244,855.20
  5. Step 5: Solve for x
    x = 78,244,855.20/12,180.67
  6. Step 6: Final answer
    x = 6,423.69

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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.