Home / 12,430.63-18,645.82-3,665.41

Finding the Fourth Proportional to 12,430.63, 18,645.82 and 3,665.41

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Solution

The fourth proportional to 12,430.63, 18,645.82 and 3,665.41 is: 5,498.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.63 : 18,645.82 = 3,665.41 : x
  2. Step 2: Convert to fraction form
    12,430.63/18,645.82 = 3,665.41/x
  3. Step 3: Cross multiply
    12,430.63x = 18,645.82 × 3,665.41
  4. Step 4: Simplify right side
    12,430.63x = 68,344,575.09
  5. Step 5: Solve for x
    x = 68,344,575.09/12,430.63
  6. Step 6: Final answer
    x = 5,498.08

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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.