Home / 11,429.49-15,775.86-6,650.35

Finding the Fourth Proportional to 11,429.49, 15,775.86 and 6,650.35

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Solution

The fourth proportional to 11,429.49, 15,775.86 and 6,650.35 is: 9,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.49 : 15,775.86 = 6,650.35 : x
  2. Step 2: Convert to fraction form
    11,429.49/15,775.86 = 6,650.35/x
  3. Step 3: Cross multiply
    11,429.49x = 15,775.86 × 6,650.35
  4. Step 4: Simplify right side
    11,429.49x = 104,914,990.55
  5. Step 5: Solve for x
    x = 104,914,990.55/11,429.49
  6. Step 6: Final answer
    x = 9,179.33

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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.