Home / 13,953.11-20,931.69-5,069.03

Finding the Fourth Proportional to 13,953.11, 20,931.69 and 5,069.03

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Solution

The fourth proportional to 13,953.11, 20,931.69 and 5,069.03 is: 7,604.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.11 : 20,931.69 = 5,069.03 : x
  2. Step 2: Convert to fraction form
    13,953.11/20,931.69 = 5,069.03/x
  3. Step 3: Cross multiply
    13,953.11x = 20,931.69 × 5,069.03
  4. Step 4: Simplify right side
    13,953.11x = 106,103,259.90
  5. Step 5: Solve for x
    x = 106,103,259.90/13,953.11
  6. Step 6: Final answer
    x = 7,604.28

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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.