Home / 19,237.26-28,861.20-8,138.10

Finding the Fourth Proportional to 19,237.26, 28,861.20 and 8,138.10

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Solution

The fourth proportional to 19,237.26, 28,861.20 and 8,138.10 is: 12,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,237.26 : 28,861.20 = 8,138.10 : x
  2. Step 2: Convert to fraction form
    19,237.26/28,861.20 = 8,138.10/x
  3. Step 3: Cross multiply
    19,237.26x = 28,861.20 × 8,138.10
  4. Step 4: Simplify right side
    19,237.26x = 234,875,331.72
  5. Step 5: Solve for x
    x = 234,875,331.72/19,237.26
  6. Step 6: Final answer
    x = 12,209.40

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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.