Home / 11,325.20-16,987.82-3,929.67

Finding the Fourth Proportional to 11,325.20, 16,987.82 and 3,929.67

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Solution

The fourth proportional to 11,325.20, 16,987.82 and 3,929.67 is: 5,894.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.20 : 16,987.82 = 3,929.67 : x
  2. Step 2: Convert to fraction form
    11,325.20/16,987.82 = 3,929.67/x
  3. Step 3: Cross multiply
    11,325.20x = 16,987.82 × 3,929.67
  4. Step 4: Simplify right side
    11,325.20x = 66,756,506.97
  5. Step 5: Solve for x
    x = 66,756,506.97/11,325.20
  6. Step 6: Final answer
    x = 5,894.51

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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.