Home / 11,674.36-16,111.10-6,639.47

Finding the Fourth Proportional to 11,674.36, 16,111.10 and 6,639.47

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Solution

The fourth proportional to 11,674.36, 16,111.10 and 6,639.47 is: 9,162.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,674.36 : 16,111.10 = 6,639.47 : x
  2. Step 2: Convert to fraction form
    11,674.36/16,111.10 = 6,639.47/x
  3. Step 3: Cross multiply
    11,674.36x = 16,111.10 × 6,639.47
  4. Step 4: Simplify right side
    11,674.36x = 106,969,161.58
  5. Step 5: Solve for x
    x = 106,969,161.58/11,674.36
  6. Step 6: Final answer
    x = 9,162.74

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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.