Home / 14,621.95-20,178.27-7,907.56

Finding the Fourth Proportional to 14,621.95, 20,178.27 and 7,907.56

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Solution

The fourth proportional to 14,621.95, 20,178.27 and 7,907.56 is: 10,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621.95 : 20,178.27 = 7,907.56 : x
  2. Step 2: Convert to fraction form
    14,621.95/20,178.27 = 7,907.56/x
  3. Step 3: Cross multiply
    14,621.95x = 20,178.27 × 7,907.56
  4. Step 4: Simplify right side
    14,621.95x = 159,560,779.83
  5. Step 5: Solve for x
    x = 159,560,779.83/14,621.95
  6. Step 6: Final answer
    x = 10,912.42

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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.