Home / 13,161.75-19,746.05-3,927.75

Finding the Fourth Proportional to 13,161.75, 19,746.05 and 3,927.75

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Solution

The fourth proportional to 13,161.75, 19,746.05 and 3,927.75 is: 5,892.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.75 : 19,746.05 = 3,927.75 : x
  2. Step 2: Convert to fraction form
    13,161.75/19,746.05 = 3,927.75/x
  3. Step 3: Cross multiply
    13,161.75x = 19,746.05 × 3,927.75
  4. Step 4: Simplify right side
    13,161.75x = 77,557,528.25
  5. Step 5: Solve for x
    x = 77,557,528.25/13,161.75
  6. Step 6: Final answer
    x = 5,892.65

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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.