Home / 12,188.98-18,284.85-4,792.47

Finding the Fourth Proportional to 12,188.98, 18,284.85 and 4,792.47

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Solution

The fourth proportional to 12,188.98, 18,284.85 and 4,792.47 is: 7,189.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.98 : 18,284.85 = 4,792.47 : x
  2. Step 2: Convert to fraction form
    12,188.98/18,284.85 = 4,792.47/x
  3. Step 3: Cross multiply
    12,188.98x = 18,284.85 × 4,792.47
  4. Step 4: Simplify right side
    12,188.98x = 87,629,479.69
  5. Step 5: Solve for x
    x = 87,629,479.69/12,188.98
  6. Step 6: Final answer
    x = 7,189.24

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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.