Home / 12,187.24-18,280.86-4,792.44

Finding the Fourth Proportional to 12,187.24, 18,280.86 and 4,792.44

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Solution

The fourth proportional to 12,187.24, 18,280.86 and 4,792.44 is: 7,188.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.24 : 18,280.86 = 4,792.44 : x
  2. Step 2: Convert to fraction form
    12,187.24/18,280.86 = 4,792.44/x
  3. Step 3: Cross multiply
    12,187.24x = 18,280.86 × 4,792.44
  4. Step 4: Simplify right side
    12,187.24x = 87,609,924.70
  5. Step 5: Solve for x
    x = 87,609,924.70/12,187.24
  6. Step 6: Final answer
    x = 7,188.66

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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.