Home / 13,171.28-19,762.26-5,771.84

Finding the Fourth Proportional to 13,171.28, 19,762.26 and 5,771.84

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Solution

The fourth proportional to 13,171.28, 19,762.26 and 5,771.84 is: 8,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.28 : 19,762.26 = 5,771.84 : x
  2. Step 2: Convert to fraction form
    13,171.28/19,762.26 = 5,771.84/x
  3. Step 3: Cross multiply
    13,171.28x = 19,762.26 × 5,771.84
  4. Step 4: Simplify right side
    13,171.28x = 114,064,602.76
  5. Step 5: Solve for x
    x = 114,064,602.76/13,171.28
  6. Step 6: Final answer
    x = 8,660.10

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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.