Home / 13,055.85-19,581.89-4,172.18

Finding the Fourth Proportional to 13,055.85, 19,581.89 and 4,172.18

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Solution

The fourth proportional to 13,055.85, 19,581.89 and 4,172.18 is: 6,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.85 : 19,581.89 = 4,172.18 : x
  2. Step 2: Convert to fraction form
    13,055.85/19,581.89 = 4,172.18/x
  3. Step 3: Cross multiply
    13,055.85x = 19,581.89 × 4,172.18
  4. Step 4: Simplify right side
    13,055.85x = 81,699,233.87
  5. Step 5: Solve for x
    x = 81,699,233.87/13,055.85
  6. Step 6: Final answer
    x = 6,257.67

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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.