Home / 13,922.30-19,215.56-8,260.19

Finding the Fourth Proportional to 13,922.30, 19,215.56 and 8,260.19

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Solution

The fourth proportional to 13,922.30, 19,215.56 and 8,260.19 is: 11,400.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.30 : 19,215.56 = 8,260.19 : x
  2. Step 2: Convert to fraction form
    13,922.30/19,215.56 = 8,260.19/x
  3. Step 3: Cross multiply
    13,922.30x = 19,215.56 × 8,260.19
  4. Step 4: Simplify right side
    13,922.30x = 158,724,039.18
  5. Step 5: Solve for x
    x = 158,724,039.18/13,922.30
  6. Step 6: Final answer
    x = 11,400.71

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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.