Home / 13,171.28-19,760.36-5,777.19

Finding the Fourth Proportional to 13,171.28, 19,760.36 and 5,777.19

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Solution

The fourth proportional to 13,171.28, 19,760.36 and 5,777.19 is: 8,667.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.28 : 19,760.36 = 5,777.19 : x
  2. Step 2: Convert to fraction form
    13,171.28/19,760.36 = 5,777.19/x
  3. Step 3: Cross multiply
    13,171.28x = 19,760.36 × 5,777.19
  4. Step 4: Simplify right side
    13,171.28x = 114,159,325.30
  5. Step 5: Solve for x
    x = 114,159,325.30/13,171.28
  6. Step 6: Final answer
    x = 8,667.29

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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.