Home / 13,911.36-20,868.32-4,551.43

Finding the Fourth Proportional to 13,911.36, 20,868.32 and 4,551.43

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Solution

The fourth proportional to 13,911.36, 20,868.32 and 4,551.43 is: 6,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.36 : 20,868.32 = 4,551.43 : x
  2. Step 2: Convert to fraction form
    13,911.36/20,868.32 = 4,551.43/x
  3. Step 3: Cross multiply
    13,911.36x = 20,868.32 × 4,551.43
  4. Step 4: Simplify right side
    13,911.36x = 94,980,697.70
  5. Step 5: Solve for x
    x = 94,980,697.70/13,911.36
  6. Step 6: Final answer
    x = 6,827.56

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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.