Home / 11,925.64-16,457.07-6,620.32

Finding the Fourth Proportional to 11,925.64, 16,457.07 and 6,620.32

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Solution

The fourth proportional to 11,925.64, 16,457.07 and 6,620.32 is: 9,135.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.64 : 16,457.07 = 6,620.32 : x
  2. Step 2: Convert to fraction form
    11,925.64/16,457.07 = 6,620.32/x
  3. Step 3: Cross multiply
    11,925.64x = 16,457.07 × 6,620.32
  4. Step 4: Simplify right side
    11,925.64x = 108,951,069.66
  5. Step 5: Solve for x
    x = 108,951,069.66/11,925.64
  6. Step 6: Final answer
    x = 9,135.87

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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.