Home / 12,410.30-18,615.75-3,645.50

Finding the Fourth Proportional to 12,410.30, 18,615.75 and 3,645.50

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Solution

The fourth proportional to 12,410.30, 18,615.75 and 3,645.50 is: 5,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,410.30 : 18,615.75 = 3,645.50 : x
  2. Step 2: Convert to fraction form
    12,410.30/18,615.75 = 3,645.50/x
  3. Step 3: Cross multiply
    12,410.30x = 18,615.75 × 3,645.50
  4. Step 4: Simplify right side
    12,410.30x = 67,863,623.55
  5. Step 5: Solve for x
    x = 67,863,623.55/12,410.30
  6. Step 6: Final answer
    x = 5,468.33

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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.