Home / 12,023.43-18,035.15-7,889.60

Finding the Fourth Proportional to 12,023.43, 18,035.15 and 7,889.60

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Solution

The fourth proportional to 12,023.43, 18,035.15 and 7,889.60 is: 11,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,023.43 : 18,035.15 = 7,889.60 : x
  2. Step 2: Convert to fraction form
    12,023.43/18,035.15 = 7,889.60/x
  3. Step 3: Cross multiply
    12,023.43x = 18,035.15 × 7,889.60
  4. Step 4: Simplify right side
    12,023.43x = 142,290,119.44
  5. Step 5: Solve for x
    x = 142,290,119.44/12,023.43
  6. Step 6: Final answer
    x = 11,834.40

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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.