Home / 13,215.95-19,823.79-4,450.81

Finding the Fourth Proportional to 13,215.95, 19,823.79 and 4,450.81

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Solution

The fourth proportional to 13,215.95, 19,823.79 and 4,450.81 is: 6,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.95 : 19,823.79 = 4,450.81 : x
  2. Step 2: Convert to fraction form
    13,215.95/19,823.79 = 4,450.81/x
  3. Step 3: Cross multiply
    13,215.95x = 19,823.79 × 4,450.81
  4. Step 4: Simplify right side
    13,215.95x = 88,231,922.77
  5. Step 5: Solve for x
    x = 88,231,922.77/13,215.95
  6. Step 6: Final answer
    x = 6,676.17

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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.