Home / 14,236.78-19,640.10-9,202.60

Finding the Fourth Proportional to 14,236.78, 19,640.10 and 9,202.60

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Solution

The fourth proportional to 14,236.78, 19,640.10 and 9,202.60 is: 12,695.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,236.78 : 19,640.10 = 9,202.60 : x
  2. Step 2: Convert to fraction form
    14,236.78/19,640.10 = 9,202.60/x
  3. Step 3: Cross multiply
    14,236.78x = 19,640.10 × 9,202.60
  4. Step 4: Simplify right side
    14,236.78x = 180,739,984.26
  5. Step 5: Solve for x
    x = 180,739,984.26/14,236.78
  6. Step 6: Final answer
    x = 12,695.29

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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.