Home / 11,315.62-16,948.86-6,919.75

Finding the Fourth Proportional to 11,315.62, 16,948.86 and 6,919.75

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Solution

The fourth proportional to 11,315.62, 16,948.86 and 6,919.75 is: 10,364.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.62 : 16,948.86 = 6,919.75 : x
  2. Step 2: Convert to fraction form
    11,315.62/16,948.86 = 6,919.75/x
  3. Step 3: Cross multiply
    11,315.62x = 16,948.86 × 6,919.75
  4. Step 4: Simplify right side
    11,315.62x = 117,281,873.99
  5. Step 5: Solve for x
    x = 117,281,873.99/11,315.62
  6. Step 6: Final answer
    x = 10,364.60

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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.