Home / 13,213.91-19,808.15-4,891.67

Finding the Fourth Proportional to 13,213.91, 19,808.15 and 4,891.67

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Solution

The fourth proportional to 13,213.91, 19,808.15 and 4,891.67 is: 7,332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.91 : 19,808.15 = 4,891.67 : x
  2. Step 2: Convert to fraction form
    13,213.91/19,808.15 = 4,891.67/x
  3. Step 3: Cross multiply
    13,213.91x = 19,808.15 × 4,891.67
  4. Step 4: Simplify right side
    13,213.91x = 96,894,846.30
  5. Step 5: Solve for x
    x = 96,894,846.30/13,213.91
  6. Step 6: Final answer
    x = 7,332.79

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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.