Home / 13,922.25-19,213.47-8,260.35

Finding the Fourth Proportional to 13,922.25, 19,213.47 and 8,260.35

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Solution

The fourth proportional to 13,922.25, 19,213.47 and 8,260.35 is: 11,399.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.25 : 19,213.47 = 8,260.35 : x
  2. Step 2: Convert to fraction form
    13,922.25/19,213.47 = 8,260.35/x
  3. Step 3: Cross multiply
    13,922.25x = 19,213.47 × 8,260.35
  4. Step 4: Simplify right side
    13,922.25x = 158,709,986.91
  5. Step 5: Solve for x
    x = 158,709,986.91/13,922.25
  6. Step 6: Final answer
    x = 11,399.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.