Home / 6,933.20-10,406.40-6,450.56

Finding the Fourth Proportional to 6,933.20, 10,406.40 and 6,450.56

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Solution

The fourth proportional to 6,933.20, 10,406.40 and 6,450.56 is: 9,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,933.20 : 10,406.40 = 6,450.56 : x
  2. Step 2: Convert to fraction form
    6,933.20/10,406.40 = 6,450.56/x
  3. Step 3: Cross multiply
    6,933.20x = 10,406.40 × 6,450.56
  4. Step 4: Simplify right side
    6,933.20x = 67,127,107.58
  5. Step 5: Solve for x
    x = 67,127,107.58/6,933.20
  6. Step 6: Final answer
    x = 9,681.98

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1.5x scale

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.