Home / 12,416.60-18,628.20-5,393.60

Finding the Fourth Proportional to 12,416.60, 18,628.20 and 5,393.60

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Solution

The fourth proportional to 12,416.60, 18,628.20 and 5,393.60 is: 8,091.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.60 : 18,628.20 = 5,393.60 : x
  2. Step 2: Convert to fraction form
    12,416.60/18,628.20 = 5,393.60/x
  3. Step 3: Cross multiply
    12,416.60x = 18,628.20 × 5,393.60
  4. Step 4: Simplify right side
    12,416.60x = 100,473,059.52
  5. Step 5: Solve for x
    x = 100,473,059.52/12,416.60
  6. Step 6: Final answer
    x = 8,091.83

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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.