Home / 13,757.85-20,639.37-6,261.99

Finding the Fourth Proportional to 13,757.85, 20,639.37 and 6,261.99

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Solution

The fourth proportional to 13,757.85, 20,639.37 and 6,261.99 is: 9,394.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.85 : 20,639.37 = 6,261.99 : x
  2. Step 2: Convert to fraction form
    13,757.85/20,639.37 = 6,261.99/x
  3. Step 3: Cross multiply
    13,757.85x = 20,639.37 × 6,261.99
  4. Step 4: Simplify right side
    13,757.85x = 129,243,528.55
  5. Step 5: Solve for x
    x = 129,243,528.55/13,757.85
  6. Step 6: Final answer
    x = 9,394.17

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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.