Home / 12,660.45-18,992.19-4,341.95

Finding the Fourth Proportional to 12,660.45, 18,992.19 and 4,341.95

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Solution

The fourth proportional to 12,660.45, 18,992.19 and 4,341.95 is: 6,513.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.45 : 18,992.19 = 4,341.95 : x
  2. Step 2: Convert to fraction form
    12,660.45/18,992.19 = 4,341.95/x
  3. Step 3: Cross multiply
    12,660.45x = 18,992.19 × 4,341.95
  4. Step 4: Simplify right side
    12,660.45x = 82,463,131.91
  5. Step 5: Solve for x
    x = 82,463,131.91/12,660.45
  6. Step 6: Final answer
    x = 6,513.45

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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.