Home / 10,511.49-15,766.70-3,116.01

Finding the Fourth Proportional to 10,511.49, 15,766.70 and 3,116.01

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Solution

The fourth proportional to 10,511.49, 15,766.70 and 3,116.01 is: 4,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.49 : 15,766.70 = 3,116.01 : x
  2. Step 2: Convert to fraction form
    10,511.49/15,766.70 = 3,116.01/x
  3. Step 3: Cross multiply
    10,511.49x = 15,766.70 × 3,116.01
  4. Step 4: Simplify right side
    10,511.49x = 49,129,179.29
  5. Step 5: Solve for x
    x = 49,129,179.29/10,511.49
  6. Step 6: Final answer
    x = 4,673.85

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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.