Home / 13,479.70-20,219.55-11,341.30

Finding the Fourth Proportional to 13,479.70, 20,219.55 and 11,341.30

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Solution

The fourth proportional to 13,479.70, 20,219.55 and 11,341.30 is: 17,011.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.70 : 20,219.55 = 11,341.30 : x
  2. Step 2: Convert to fraction form
    13,479.70/20,219.55 = 11,341.30/x
  3. Step 3: Cross multiply
    13,479.70x = 20,219.55 × 11,341.30
  4. Step 4: Simplify right side
    13,479.70x = 229,315,982.42
  5. Step 5: Solve for x
    x = 229,315,982.42/13,479.70
  6. Step 6: Final answer
    x = 17,011.95

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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.