Home / 14,078.74-21,103.47-7,418.26

Finding the Fourth Proportional to 14,078.74, 21,103.47 and 7,418.26

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Solution

The fourth proportional to 14,078.74, 21,103.47 and 7,418.26 is: 11,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.74 : 21,103.47 = 7,418.26 : x
  2. Step 2: Convert to fraction form
    14,078.74/21,103.47 = 7,418.26/x
  3. Step 3: Cross multiply
    14,078.74x = 21,103.47 × 7,418.26
  4. Step 4: Simplify right side
    14,078.74x = 156,551,027.36
  5. Step 5: Solve for x
    x = 156,551,027.36/14,078.74
  6. Step 6: Final answer
    x = 11,119.68

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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.