Home / 13,979.88-20,982.78-7,059.24

Finding the Fourth Proportional to 13,979.88, 20,982.78 and 7,059.24

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Solution

The fourth proportional to 13,979.88, 20,982.78 and 7,059.24 is: 10,595.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.88 : 20,982.78 = 7,059.24 : x
  2. Step 2: Convert to fraction form
    13,979.88/20,982.78 = 7,059.24/x
  3. Step 3: Cross multiply
    13,979.88x = 20,982.78 × 7,059.24
  4. Step 4: Simplify right side
    13,979.88x = 148,122,479.89
  5. Step 5: Solve for x
    x = 148,122,479.89/13,979.88
  6. Step 6: Final answer
    x = 10,595.40

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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.