Home / 13,254.04-18,291.44-8,221.60

Finding the Fourth Proportional to 13,254.04, 18,291.44 and 8,221.60

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Solution

The fourth proportional to 13,254.04, 18,291.44 and 8,221.60 is: 11,346.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.04 : 18,291.44 = 8,221.60 : x
  2. Step 2: Convert to fraction form
    13,254.04/18,291.44 = 8,221.60/x
  3. Step 3: Cross multiply
    13,254.04x = 18,291.44 × 8,221.60
  4. Step 4: Simplify right side
    13,254.04x = 150,384,895.14
  5. Step 5: Solve for x
    x = 150,384,895.14/13,254.04
  6. Step 6: Final answer
    x = 11,346.34

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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.