Home / 13,991.38-19,300.44-9,735.71

Finding the Fourth Proportional to 13,991.38, 19,300.44 and 9,735.71

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Solution

The fourth proportional to 13,991.38, 19,300.44 and 9,735.71 is: 13,429.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.38 : 19,300.44 = 9,735.71 : x
  2. Step 2: Convert to fraction form
    13,991.38/19,300.44 = 9,735.71/x
  3. Step 3: Cross multiply
    13,991.38x = 19,300.44 × 9,735.71
  4. Step 4: Simplify right side
    13,991.38x = 187,903,426.72
  5. Step 5: Solve for x
    x = 187,903,426.72/13,991.38
  6. Step 6: Final answer
    x = 13,429.94

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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.