Home / 6,916.92-10,376.96-1,986.60

Finding the Fourth Proportional to 6,916.92, 10,376.96 and 1,986.60

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Solution

The fourth proportional to 6,916.92, 10,376.96 and 1,986.60 is: 2,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.92 : 10,376.96 = 1,986.60 : x
  2. Step 2: Convert to fraction form
    6,916.92/10,376.96 = 1,986.60/x
  3. Step 3: Cross multiply
    6,916.92x = 10,376.96 × 1,986.60
  4. Step 4: Simplify right side
    6,916.92x = 20,614,868.74
  5. Step 5: Solve for x
    x = 20,614,868.74/6,916.92
  6. Step 6: Final answer
    x = 2,980.35

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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.