Home / 12,960.05-19,443.16-4,194.96

Finding the Fourth Proportional to 12,960.05, 19,443.16 and 4,194.96

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Solution

The fourth proportional to 12,960.05, 19,443.16 and 4,194.96 is: 6,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960.05 : 19,443.16 = 4,194.96 : x
  2. Step 2: Convert to fraction form
    12,960.05/19,443.16 = 4,194.96/x
  3. Step 3: Cross multiply
    12,960.05x = 19,443.16 × 4,194.96
  4. Step 4: Simplify right side
    12,960.05x = 81,563,386.66
  5. Step 5: Solve for x
    x = 81,563,386.66/12,960.05
  6. Step 6: Final answer
    x = 6,293.45

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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.