Home / 13,951.28-20,912.34-6,159.08

Finding the Fourth Proportional to 13,951.28, 20,912.34 and 6,159.08

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Solution

The fourth proportional to 13,951.28, 20,912.34 and 6,159.08 is: 9,232.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.28 : 20,912.34 = 6,159.08 : x
  2. Step 2: Convert to fraction form
    13,951.28/20,912.34 = 6,159.08/x
  3. Step 3: Cross multiply
    13,951.28x = 20,912.34 × 6,159.08
  4. Step 4: Simplify right side
    13,951.28x = 128,800,775.05
  5. Step 5: Solve for x
    x = 128,800,775.05/13,951.28
  6. Step 6: Final answer
    x = 9,232.18

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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.