Home / 14,621.87-20,178.17-7,907.45

Finding the Fourth Proportional to 14,621.87, 20,178.17 and 7,907.45

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Solution

The fourth proportional to 14,621.87, 20,178.17 and 7,907.45 is: 10,912.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621.87 : 20,178.17 = 7,907.45 : x
  2. Step 2: Convert to fraction form
    14,621.87/20,178.17 = 7,907.45/x
  3. Step 3: Cross multiply
    14,621.87x = 20,178.17 × 7,907.45
  4. Step 4: Simplify right side
    14,621.87x = 159,557,789.24
  5. Step 5: Solve for x
    x = 159,557,789.24/14,621.87
  6. Step 6: Final answer
    x = 10,912.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.