Home / 13,466.40-20,175.30-11,911.20

Finding the Fourth Proportional to 13,466.40, 20,175.30 and 11,911.20

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Solution

The fourth proportional to 13,466.40, 20,175.30 and 11,911.20 is: 17,845.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.40 : 20,175.30 = 11,911.20 : x
  2. Step 2: Convert to fraction form
    13,466.40/20,175.30 = 11,911.20/x
  3. Step 3: Cross multiply
    13,466.40x = 20,175.30 × 11,911.20
  4. Step 4: Simplify right side
    13,466.40x = 240,312,033.36
  5. Step 5: Solve for x
    x = 240,312,033.36/13,466.40
  6. Step 6: Final answer
    x = 17,845.31

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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.