Home / 13,209.04-18,202.24-9,425.60

Finding the Fourth Proportional to 13,209.04, 18,202.24 and 9,425.60

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Solution

The fourth proportional to 13,209.04, 18,202.24 and 9,425.60 is: 12,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.04 : 18,202.24 = 9,425.60 : x
  2. Step 2: Convert to fraction form
    13,209.04/18,202.24 = 9,425.60/x
  3. Step 3: Cross multiply
    13,209.04x = 18,202.24 × 9,425.60
  4. Step 4: Simplify right side
    13,209.04x = 171,567,033.34
  5. Step 5: Solve for x
    x = 171,567,033.34/13,209.04
  6. Step 6: Final answer
    x = 12,988.61

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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.