Home / 13,513.80-20,270.70-9,798.60

Finding the Fourth Proportional to 13,513.80, 20,270.70 and 9,798.60

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Solution

The fourth proportional to 13,513.80, 20,270.70 and 9,798.60 is: 14,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.80 : 20,270.70 = 9,798.60 : x
  2. Step 2: Convert to fraction form
    13,513.80/20,270.70 = 9,798.60/x
  3. Step 3: Cross multiply
    13,513.80x = 20,270.70 × 9,798.60
  4. Step 4: Simplify right side
    13,513.80x = 198,624,481.02
  5. Step 5: Solve for x
    x = 198,624,481.02/13,513.80
  6. Step 6: Final answer
    x = 14,697.90

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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.