Home / 11,675.35-16,112.01-6,639.45

Finding the Fourth Proportional to 11,675.35, 16,112.01 and 6,639.45

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Solution

The fourth proportional to 11,675.35, 16,112.01 and 6,639.45 is: 9,162.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,675.35 : 16,112.01 = 6,639.45 : x
  2. Step 2: Convert to fraction form
    11,675.35/16,112.01 = 6,639.45/x
  3. Step 3: Cross multiply
    11,675.35x = 16,112.01 × 6,639.45
  4. Step 4: Simplify right side
    11,675.35x = 106,974,884.79
  5. Step 5: Solve for x
    x = 106,974,884.79/11,675.35
  6. Step 6: Final answer
    x = 9,162.46

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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.