Home / 13,943.66-20,908.52-4,454.72

Finding the Fourth Proportional to 13,943.66, 20,908.52 and 4,454.72

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Solution

The fourth proportional to 13,943.66, 20,908.52 and 4,454.72 is: 6,679.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.66 : 20,908.52 = 4,454.72 : x
  2. Step 2: Convert to fraction form
    13,943.66/20,908.52 = 4,454.72/x
  3. Step 3: Cross multiply
    13,943.66x = 20,908.52 × 4,454.72
  4. Step 4: Simplify right side
    13,943.66x = 93,141,475.40
  5. Step 5: Solve for x
    x = 93,141,475.40/13,943.66
  6. Step 6: Final answer
    x = 6,679.85

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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.