Home / 18,213.90-25,135.60-10,148.09

Finding the Fourth Proportional to 18,213.90, 25,135.60 and 10,148.09

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Solution

The fourth proportional to 18,213.90, 25,135.60 and 10,148.09 is: 14,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.90 : 25,135.60 = 10,148.09 : x
  2. Step 2: Convert to fraction form
    18,213.90/25,135.60 = 10,148.09/x
  3. Step 3: Cross multiply
    18,213.90x = 25,135.60 × 10,148.09
  4. Step 4: Simplify right side
    18,213.90x = 255,078,321.78
  5. Step 5: Solve for x
    x = 255,078,321.78/18,213.90
  6. Step 6: Final answer
    x = 14,004.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.