Home / 13,346.80-19,998.60-8,407.60

Finding the Fourth Proportional to 13,346.80, 19,998.60 and 8,407.60

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Solution

The fourth proportional to 13,346.80, 19,998.60 and 8,407.60 is: 12,597.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.80 : 19,998.60 = 8,407.60 : x
  2. Step 2: Convert to fraction form
    13,346.80/19,998.60 = 8,407.60/x
  3. Step 3: Cross multiply
    13,346.80x = 19,998.60 × 8,407.60
  4. Step 4: Simplify right side
    13,346.80x = 168,140,229.36
  5. Step 5: Solve for x
    x = 168,140,229.36/13,346.80
  6. Step 6: Final answer
    x = 12,597.79

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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.