Home / 13,279.05-19,912.91-4,509.99

Finding the Fourth Proportional to 13,279.05, 19,912.91 and 4,509.99

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Solution

The fourth proportional to 13,279.05, 19,912.91 and 4,509.99 is: 6,763.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.05 : 19,912.91 = 4,509.99 : x
  2. Step 2: Convert to fraction form
    13,279.05/19,912.91 = 4,509.99/x
  3. Step 3: Cross multiply
    13,279.05x = 19,912.91 × 4,509.99
  4. Step 4: Simplify right side
    13,279.05x = 89,807,002.42
  5. Step 5: Solve for x
    x = 89,807,002.42/13,279.05
  6. Step 6: Final answer
    x = 6,763.06

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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.