Home / 13,215.76-19,823.78-4,450.69

Finding the Fourth Proportional to 13,215.76, 19,823.78 and 4,450.69

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Solution

The fourth proportional to 13,215.76, 19,823.78 and 4,450.69 is: 6,676.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.76 : 19,823.78 = 4,450.69 : x
  2. Step 2: Convert to fraction form
    13,215.76/19,823.78 = 4,450.69/x
  3. Step 3: Cross multiply
    13,215.76x = 19,823.78 × 4,450.69
  4. Step 4: Simplify right side
    13,215.76x = 88,229,499.41
  5. Step 5: Solve for x
    x = 88,229,499.41/13,215.76
  6. Step 6: Final answer
    x = 6,676.08

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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.