Home / 13,973.24-20,939.49-6,479.10

Finding the Fourth Proportional to 13,973.24, 20,939.49 and 6,479.10

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Solution

The fourth proportional to 13,973.24, 20,939.49 and 6,479.10 is: 9,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973.24 : 20,939.49 = 6,479.10 : x
  2. Step 2: Convert to fraction form
    13,973.24/20,939.49 = 6,479.10/x
  3. Step 3: Cross multiply
    13,973.24x = 20,939.49 × 6,479.10
  4. Step 4: Simplify right side
    13,973.24x = 135,668,912.57
  5. Step 5: Solve for x
    x = 135,668,912.57/13,973.24
  6. Step 6: Final answer
    x = 9,709.20

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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.