Home / 9,679.20-13,359.24-6,322.56

Finding the Fourth Proportional to 9,679.20, 13,359.24 and 6,322.56

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Solution

The fourth proportional to 9,679.20, 13,359.24 and 6,322.56 is: 8,726.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679.20 : 13,359.24 = 6,322.56 : x
  2. Step 2: Convert to fraction form
    9,679.20/13,359.24 = 6,322.56/x
  3. Step 3: Cross multiply
    9,679.20x = 13,359.24 × 6,322.56
  4. Step 4: Simplify right side
    9,679.20x = 84,464,596.45
  5. Step 5: Solve for x
    x = 84,464,596.45/9,679.20
  6. Step 6: Final answer
    x = 8,726.40

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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.