Home / 12,410.40-17,126.42-6,745.20

Finding the Fourth Proportional to 12,410.40, 17,126.42 and 6,745.20

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Solution

The fourth proportional to 12,410.40, 17,126.42 and 6,745.20 is: 9,308.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,410.40 : 17,126.42 = 6,745.20 : x
  2. Step 2: Convert to fraction form
    12,410.40/17,126.42 = 6,745.20/x
  3. Step 3: Cross multiply
    12,410.40x = 17,126.42 × 6,745.20
  4. Step 4: Simplify right side
    12,410.40x = 115,521,128.18
  5. Step 5: Solve for x
    x = 115,521,128.18/12,410.40
  6. Step 6: Final answer
    x = 9,308.41

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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.