Home / 11,362.64-17,028.84-6,429.20

Finding the Fourth Proportional to 11,362.64, 17,028.84 and 6,429.20

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Solution

The fourth proportional to 11,362.64, 17,028.84 and 6,429.20 is: 9,635.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,362.64 : 17,028.84 = 6,429.20 : x
  2. Step 2: Convert to fraction form
    11,362.64/17,028.84 = 6,429.20/x
  3. Step 3: Cross multiply
    11,362.64x = 17,028.84 × 6,429.20
  4. Step 4: Simplify right side
    11,362.64x = 109,481,818.13
  5. Step 5: Solve for x
    x = 109,481,818.13/11,362.64
  6. Step 6: Final answer
    x = 9,635.24

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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.