Home / 12,955.36-19,433.65-4,190.96

Finding the Fourth Proportional to 12,955.36, 19,433.65 and 4,190.96

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Solution

The fourth proportional to 12,955.36, 19,433.65 and 4,190.96 is: 6,286.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.36 : 19,433.65 = 4,190.96 : x
  2. Step 2: Convert to fraction form
    12,955.36/19,433.65 = 4,190.96/x
  3. Step 3: Cross multiply
    12,955.36x = 19,433.65 × 4,190.96
  4. Step 4: Simplify right side
    12,955.36x = 81,445,590.74
  5. Step 5: Solve for x
    x = 81,445,590.74/12,955.36
  6. Step 6: Final answer
    x = 6,286.63

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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.