Home / 11,322.60-16,983.90-8,557.80

Finding the Fourth Proportional to 11,322.60, 16,983.90 and 8,557.80

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Solution

The fourth proportional to 11,322.60, 16,983.90 and 8,557.80 is: 12,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,322.60 : 16,983.90 = 8,557.80 : x
  2. Step 2: Convert to fraction form
    11,322.60/16,983.90 = 8,557.80/x
  3. Step 3: Cross multiply
    11,322.60x = 16,983.90 × 8,557.80
  4. Step 4: Simplify right side
    11,322.60x = 145,344,819.42
  5. Step 5: Solve for x
    x = 145,344,819.42/11,322.60
  6. Step 6: Final answer
    x = 12,836.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.