Home / 15,651.68-23,478.38-3,965

Finding the Fourth Proportional to 15,651.68, 23,478.38 and 3,965

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Solution

The fourth proportional to 15,651.68, 23,478.38 and 3,965 is: 5,947.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651.68 : 23,478.38 = 3,965 : x
  2. Step 2: Convert to fraction form
    15,651.68/23,478.38 = 3,965/x
  3. Step 3: Cross multiply
    15,651.68x = 23,478.38 × 3,965
  4. Step 4: Simplify right side
    15,651.68x = 93,091,776.70
  5. Step 5: Solve for x
    x = 93,091,776.70/15,651.68
  6. Step 6: Final answer
    x = 5,947.72

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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.