Home / 11,725.06-16,180.58-6,419.98

Finding the Fourth Proportional to 11,725.06, 16,180.58 and 6,419.98

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Solution

The fourth proportional to 11,725.06, 16,180.58 and 6,419.98 is: 8,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,725.06 : 16,180.58 = 6,419.98 : x
  2. Step 2: Convert to fraction form
    11,725.06/16,180.58 = 6,419.98/x
  3. Step 3: Cross multiply
    11,725.06x = 16,180.58 × 6,419.98
  4. Step 4: Simplify right side
    11,725.06x = 103,878,967.89
  5. Step 5: Solve for x
    x = 103,878,967.89/11,725.06
  6. Step 6: Final answer
    x = 8,859.57

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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.