Home / 7,916.70-11,865.99-3,750.80

Finding the Fourth Proportional to 7,916.70, 11,865.99 and 3,750.80

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Solution

The fourth proportional to 7,916.70, 11,865.99 and 3,750.80 is: 5,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.70 : 11,865.99 = 3,750.80 : x
  2. Step 2: Convert to fraction form
    7,916.70/11,865.99 = 3,750.80/x
  3. Step 3: Cross multiply
    7,916.70x = 11,865.99 × 3,750.80
  4. Step 4: Simplify right side
    7,916.70x = 44,506,984.96
  5. Step 5: Solve for x
    x = 44,506,984.96/7,916.70
  6. Step 6: Final answer
    x = 5,621.91

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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.