Home / 12,808.58-19,221.50-4,488.67

Finding the Fourth Proportional to 12,808.58, 19,221.50 and 4,488.67

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Solution

The fourth proportional to 12,808.58, 19,221.50 and 4,488.67 is: 6,736.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.58 : 19,221.50 = 4,488.67 : x
  2. Step 2: Convert to fraction form
    12,808.58/19,221.50 = 4,488.67/x
  3. Step 3: Cross multiply
    12,808.58x = 19,221.50 × 4,488.67
  4. Step 4: Simplify right side
    12,808.58x = 86,278,970.41
  5. Step 5: Solve for x
    x = 86,278,970.41/12,808.58
  6. Step 6: Final answer
    x = 6,736.03

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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.