Home / 14,126.60-21,132.30-12,744.20

Finding the Fourth Proportional to 14,126.60, 21,132.30 and 12,744.20

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Solution

The fourth proportional to 14,126.60, 21,132.30 and 12,744.20 is: 19,064.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,126.60 : 21,132.30 = 12,744.20 : x
  2. Step 2: Convert to fraction form
    14,126.60/21,132.30 = 12,744.20/x
  3. Step 3: Cross multiply
    14,126.60x = 21,132.30 × 12,744.20
  4. Step 4: Simplify right side
    14,126.60x = 269,314,257.66
  5. Step 5: Solve for x
    x = 269,314,257.66/14,126.60
  6. Step 6: Final answer
    x = 19,064.34

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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.