Home / 13,664.23-18,856.70-7,696.00

Finding the Fourth Proportional to 13,664.23, 18,856.70 and 7,696.00

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Solution

The fourth proportional to 13,664.23, 18,856.70 and 7,696.00 is: 10,620.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.23 : 18,856.70 = 7,696.00 : x
  2. Step 2: Convert to fraction form
    13,664.23/18,856.70 = 7,696.00/x
  3. Step 3: Cross multiply
    13,664.23x = 18,856.70 × 7,696.00
  4. Step 4: Simplify right side
    13,664.23x = 145,121,177.15
  5. Step 5: Solve for x
    x = 145,121,177.15/13,664.23
  6. Step 6: Final answer
    x = 10,620.52

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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.