Home / 11,916.65-17,880.75-4,901.85

Finding the Fourth Proportional to 11,916.65, 17,880.75 and 4,901.85

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Solution

The fourth proportional to 11,916.65, 17,880.75 and 4,901.85 is: 7,355.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.65 : 17,880.75 = 4,901.85 : x
  2. Step 2: Convert to fraction form
    11,916.65/17,880.75 = 4,901.85/x
  3. Step 3: Cross multiply
    11,916.65x = 17,880.75 × 4,901.85
  4. Step 4: Simplify right side
    11,916.65x = 87,648,754.39
  5. Step 5: Solve for x
    x = 87,648,754.39/11,916.65
  6. Step 6: Final answer
    x = 7,355.15

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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.