Home / 12,365.48-18,548.24-8,213.60

Finding the Fourth Proportional to 12,365.48, 18,548.24 and 8,213.60

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Solution

The fourth proportional to 12,365.48, 18,548.24 and 8,213.60 is: 12,320.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.48 : 18,548.24 = 8,213.60 : x
  2. Step 2: Convert to fraction form
    12,365.48/18,548.24 = 8,213.60/x
  3. Step 3: Cross multiply
    12,365.48x = 18,548.24 × 8,213.60
  4. Step 4: Simplify right side
    12,365.48x = 152,347,829.37
  5. Step 5: Solve for x
    x = 152,347,829.37/12,365.48
  6. Step 6: Final answer
    x = 12,320.41

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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.