Home / 13,711.35-20,570.13-4,351.94

Finding the Fourth Proportional to 13,711.35, 20,570.13 and 4,351.94

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Solution

The fourth proportional to 13,711.35, 20,570.13 and 4,351.94 is: 6,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.35 : 20,570.13 = 4,351.94 : x
  2. Step 2: Convert to fraction form
    13,711.35/20,570.13 = 4,351.94/x
  3. Step 3: Cross multiply
    13,711.35x = 20,570.13 × 4,351.94
  4. Step 4: Simplify right side
    13,711.35x = 89,519,971.55
  5. Step 5: Solve for x
    x = 89,519,971.55/13,711.35
  6. Step 6: Final answer
    x = 6,528.90

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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.