Home / 10,916.95-16,375.41-3,125.77

Finding the Fourth Proportional to 10,916.95, 16,375.41 and 3,125.77

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Solution

The fourth proportional to 10,916.95, 16,375.41 and 3,125.77 is: 4,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.95 : 16,375.41 = 3,125.77 : x
  2. Step 2: Convert to fraction form
    10,916.95/16,375.41 = 3,125.77/x
  3. Step 3: Cross multiply
    10,916.95x = 16,375.41 × 3,125.77
  4. Step 4: Simplify right side
    10,916.95x = 51,185,765.32
  5. Step 5: Solve for x
    x = 51,185,765.32/10,916.95
  6. Step 6: Final answer
    x = 4,688.65

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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.