Home / 12,971.63-19,460.18-4,205.86

Finding the Fourth Proportional to 12,971.63, 19,460.18 and 4,205.86

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Solution

The fourth proportional to 12,971.63, 19,460.18 and 4,205.86 is: 6,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.63 : 19,460.18 = 4,205.86 : x
  2. Step 2: Convert to fraction form
    12,971.63/19,460.18 = 4,205.86/x
  3. Step 3: Cross multiply
    12,971.63x = 19,460.18 × 4,205.86
  4. Step 4: Simplify right side
    12,971.63x = 81,846,767.35
  5. Step 5: Solve for x
    x = 81,846,767.35/12,971.63
  6. Step 6: Final answer
    x = 6,309.68

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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.