Home / 11,469.99-15,829.79-6,435.57

Finding the Fourth Proportional to 11,469.99, 15,829.79 and 6,435.57

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Solution

The fourth proportional to 11,469.99, 15,829.79 and 6,435.57 is: 8,881.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,469.99 : 15,829.79 = 6,435.57 : x
  2. Step 2: Convert to fraction form
    11,469.99/15,829.79 = 6,435.57/x
  3. Step 3: Cross multiply
    11,469.99x = 15,829.79 × 6,435.57
  4. Step 4: Simplify right side
    11,469.99x = 101,873,689.45
  5. Step 5: Solve for x
    x = 101,873,689.45/11,469.99
  6. Step 6: Final answer
    x = 8,881.76

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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.