Home / 12,660.85-18,992.36-3,302.11

Finding the Fourth Proportional to 12,660.85, 18,992.36 and 3,302.11

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Solution

The fourth proportional to 12,660.85, 18,992.36 and 3,302.11 is: 4,953.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.85 : 18,992.36 = 3,302.11 : x
  2. Step 2: Convert to fraction form
    12,660.85/18,992.36 = 3,302.11/x
  3. Step 3: Cross multiply
    12,660.85x = 18,992.36 × 3,302.11
  4. Step 4: Simplify right side
    12,660.85x = 62,714,861.88
  5. Step 5: Solve for x
    x = 62,714,861.88/12,660.85
  6. Step 6: Final answer
    x = 4,953.45

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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.