Home / 13,822.74-19,077.60-7,856.33

Finding the Fourth Proportional to 13,822.74, 19,077.60 and 7,856.33

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Solution

The fourth proportional to 13,822.74, 19,077.60 and 7,856.33 is: 10,843.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.74 : 19,077.60 = 7,856.33 : x
  2. Step 2: Convert to fraction form
    13,822.74/19,077.60 = 7,856.33/x
  3. Step 3: Cross multiply
    13,822.74x = 19,077.60 × 7,856.33
  4. Step 4: Simplify right side
    13,822.74x = 149,879,968.90
  5. Step 5: Solve for x
    x = 149,879,968.90/13,822.74
  6. Step 6: Final answer
    x = 10,843.00

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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.