Home / 10,140.94-15,211.41-3,215.44

Finding the Fourth Proportional to 10,140.94, 15,211.41 and 3,215.44

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Solution

The fourth proportional to 10,140.94, 15,211.41 and 3,215.44 is: 4,823.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.94 : 15,211.41 = 3,215.44 : x
  2. Step 2: Convert to fraction form
    10,140.94/15,211.41 = 3,215.44/x
  3. Step 3: Cross multiply
    10,140.94x = 15,211.41 × 3,215.44
  4. Step 4: Simplify right side
    10,140.94x = 48,911,338.14
  5. Step 5: Solve for x
    x = 48,911,338.14/10,140.94
  6. Step 6: Final answer
    x = 4,823.16

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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.