Home / 13,410.16-20,126.30-6,748.54

Finding the Fourth Proportional to 13,410.16, 20,126.30 and 6,748.54

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Solution

The fourth proportional to 13,410.16, 20,126.30 and 6,748.54 is: 10,128.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.16 : 20,126.30 = 6,748.54 : x
  2. Step 2: Convert to fraction form
    13,410.16/20,126.30 = 6,748.54/x
  3. Step 3: Cross multiply
    13,410.16x = 20,126.30 × 6,748.54
  4. Step 4: Simplify right side
    13,410.16x = 135,823,140.60
  5. Step 5: Solve for x
    x = 135,823,140.60/13,410.16
  6. Step 6: Final answer
    x = 10,128.38

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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.