Home / 13,976.02-19,286.94-7,688.80

Finding the Fourth Proportional to 13,976.02, 19,286.94 and 7,688.80

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Solution

The fourth proportional to 13,976.02, 19,286.94 and 7,688.80 is: 10,610.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.02 : 19,286.94 = 7,688.80 : x
  2. Step 2: Convert to fraction form
    13,976.02/19,286.94 = 7,688.80/x
  3. Step 3: Cross multiply
    13,976.02x = 19,286.94 × 7,688.80
  4. Step 4: Simplify right side
    13,976.02x = 148,293,424.27
  5. Step 5: Solve for x
    x = 148,293,424.27/13,976.02
  6. Step 6: Final answer
    x = 10,610.56

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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.