Home / 19,258.39-28,880.61-8,165.80

Finding the Fourth Proportional to 19,258.39, 28,880.61 and 8,165.80

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Solution

The fourth proportional to 19,258.39, 28,880.61 and 8,165.80 is: 12,245.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,258.39 : 28,880.61 = 8,165.80 : x
  2. Step 2: Convert to fraction form
    19,258.39/28,880.61 = 8,165.80/x
  3. Step 3: Cross multiply
    19,258.39x = 28,880.61 × 8,165.80
  4. Step 4: Simplify right side
    19,258.39x = 235,833,285.14
  5. Step 5: Solve for x
    x = 235,833,285.14/19,258.39
  6. Step 6: Final answer
    x = 12,245.74

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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.