Home / 13,615.04-20,418.81-9,654.60

Finding the Fourth Proportional to 13,615.04, 20,418.81 and 9,654.60

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Solution

The fourth proportional to 13,615.04, 20,418.81 and 9,654.60 is: 14,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.04 : 20,418.81 = 9,654.60 : x
  2. Step 2: Convert to fraction form
    13,615.04/20,418.81 = 9,654.60/x
  3. Step 3: Cross multiply
    13,615.04x = 20,418.81 × 9,654.60
  4. Step 4: Simplify right side
    13,615.04x = 197,135,443.03
  5. Step 5: Solve for x
    x = 197,135,443.03/13,615.04
  6. Step 6: Final answer
    x = 14,479.24

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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.