Home / 14,078.88-21,117.51-4,218.35

Finding the Fourth Proportional to 14,078.88, 21,117.51 and 4,218.35

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Solution

The fourth proportional to 14,078.88, 21,117.51 and 4,218.35 is: 6,327.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.88 : 21,117.51 = 4,218.35 : x
  2. Step 2: Convert to fraction form
    14,078.88/21,117.51 = 4,218.35/x
  3. Step 3: Cross multiply
    14,078.88x = 21,117.51 × 4,218.35
  4. Step 4: Simplify right side
    14,078.88x = 89,080,942.72
  5. Step 5: Solve for x
    x = 89,080,942.72/14,078.88
  6. Step 6: Final answer
    x = 6,327.27

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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.