Home / 13,976.58-19,287.93-7,688.94

Finding the Fourth Proportional to 13,976.58, 19,287.93 and 7,688.94

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Solution

The fourth proportional to 13,976.58, 19,287.93 and 7,688.94 is: 10,610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.58 : 19,287.93 = 7,688.94 : x
  2. Step 2: Convert to fraction form
    13,976.58/19,287.93 = 7,688.94/x
  3. Step 3: Cross multiply
    13,976.58x = 19,287.93 × 7,688.94
  4. Step 4: Simplify right side
    13,976.58x = 148,303,736.49
  5. Step 5: Solve for x
    x = 148,303,736.49/13,976.58
  6. Step 6: Final answer
    x = 10,610.87

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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.