Home / 13,632.40-20,436.60-9,235.60

Finding the Fourth Proportional to 13,632.40, 20,436.60 and 9,235.60

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Solution

The fourth proportional to 13,632.40, 20,436.60 and 9,235.60 is: 13,845.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.40 : 20,436.60 = 9,235.60 : x
  2. Step 2: Convert to fraction form
    13,632.40/20,436.60 = 9,235.60/x
  3. Step 3: Cross multiply
    13,632.40x = 20,436.60 × 9,235.60
  4. Step 4: Simplify right side
    13,632.40x = 188,744,262.96
  5. Step 5: Solve for x
    x = 188,744,262.96/13,632.40
  6. Step 6: Final answer
    x = 13,845.27

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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.