Home / 14,768.60-20,382.72-8,480.84

Finding the Fourth Proportional to 14,768.60, 20,382.72 and 8,480.84

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Solution

The fourth proportional to 14,768.60, 20,382.72 and 8,480.84 is: 11,704.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,768.60 : 20,382.72 = 8,480.84 : x
  2. Step 2: Convert to fraction form
    14,768.60/20,382.72 = 8,480.84/x
  3. Step 3: Cross multiply
    14,768.60x = 20,382.72 × 8,480.84
  4. Step 4: Simplify right side
    14,768.60x = 172,862,587.08
  5. Step 5: Solve for x
    x = 172,862,587.08/14,768.60
  6. Step 6: Final answer
    x = 11,704.74

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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.