Home / 13,013.54-19,517.39-5,986.81

Finding the Fourth Proportional to 13,013.54, 19,517.39 and 5,986.81

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Solution

The fourth proportional to 13,013.54, 19,517.39 and 5,986.81 is: 8,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.54 : 19,517.39 = 5,986.81 : x
  2. Step 2: Convert to fraction form
    13,013.54/19,517.39 = 5,986.81/x
  3. Step 3: Cross multiply
    13,013.54x = 19,517.39 × 5,986.81
  4. Step 4: Simplify right side
    13,013.54x = 116,846,905.63
  5. Step 5: Solve for x
    x = 116,846,905.63/13,013.54
  6. Step 6: Final answer
    x = 8,978.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.