Home / 12,188.34-18,279.37-4,792.84

Finding the Fourth Proportional to 12,188.34, 18,279.37 and 4,792.84

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Solution

The fourth proportional to 12,188.34, 18,279.37 and 4,792.84 is: 7,188.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.34 : 18,279.37 = 4,792.84 : x
  2. Step 2: Convert to fraction form
    12,188.34/18,279.37 = 4,792.84/x
  3. Step 3: Cross multiply
    12,188.34x = 18,279.37 × 4,792.84
  4. Step 4: Simplify right side
    12,188.34x = 87,610,056.00
  5. Step 5: Solve for x
    x = 87,610,056.00/12,188.34
  6. Step 6: Final answer
    x = 7,188.02

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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.