Home / 11,867.64-16,377.66-6,490.32

Finding the Fourth Proportional to 11,867.64, 16,377.66 and 6,490.32

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Solution

The fourth proportional to 11,867.64, 16,377.66 and 6,490.32 is: 8,956.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.64 : 16,377.66 = 6,490.32 : x
  2. Step 2: Convert to fraction form
    11,867.64/16,377.66 = 6,490.32/x
  3. Step 3: Cross multiply
    11,867.64x = 16,377.66 × 6,490.32
  4. Step 4: Simplify right side
    11,867.64x = 106,296,254.25
  5. Step 5: Solve for x
    x = 106,296,254.25/11,867.64
  6. Step 6: Final answer
    x = 8,956.81

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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.