Home / 13,119.47-19,682.29-4,354.41

Finding the Fourth Proportional to 13,119.47, 19,682.29 and 4,354.41

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Solution

The fourth proportional to 13,119.47, 19,682.29 and 4,354.41 is: 6,532.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.47 : 19,682.29 = 4,354.41 : x
  2. Step 2: Convert to fraction form
    13,119.47/19,682.29 = 4,354.41/x
  3. Step 3: Cross multiply
    13,119.47x = 19,682.29 × 4,354.41
  4. Step 4: Simplify right side
    13,119.47x = 85,704,728.94
  5. Step 5: Solve for x
    x = 85,704,728.94/13,119.47
  6. Step 6: Final answer
    x = 6,532.64

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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.