Home / 13,976.44-19,287.48-7,688.77

Finding the Fourth Proportional to 13,976.44, 19,287.48 and 7,688.77

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Solution

The fourth proportional to 13,976.44, 19,287.48 and 7,688.77 is: 10,610.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.44 : 19,287.48 = 7,688.77 : x
  2. Step 2: Convert to fraction form
    13,976.44/19,287.48 = 7,688.77/x
  3. Step 3: Cross multiply
    13,976.44x = 19,287.48 × 7,688.77
  4. Step 4: Simplify right side
    13,976.44x = 148,296,997.60
  5. Step 5: Solve for x
    x = 148,296,997.60/13,976.44
  6. Step 6: Final answer
    x = 10,610.50

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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.