Home / 11,428.32-17,148.24-4,507.68

Finding the Fourth Proportional to 11,428.32, 17,148.24 and 4,507.68

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Solution

The fourth proportional to 11,428.32, 17,148.24 and 4,507.68 is: 6,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.32 : 17,148.24 = 4,507.68 : x
  2. Step 2: Convert to fraction form
    11,428.32/17,148.24 = 4,507.68/x
  3. Step 3: Cross multiply
    11,428.32x = 17,148.24 × 4,507.68
  4. Step 4: Simplify right side
    11,428.32x = 77,298,778.48
  5. Step 5: Solve for x
    x = 77,298,778.48/11,428.32
  6. Step 6: Final answer
    x = 6,763.79

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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.