Home / 11,899.40-16,426.50-8,558.60

Finding the Fourth Proportional to 11,899.40, 16,426.50 and 8,558.60

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Solution

The fourth proportional to 11,899.40, 16,426.50 and 8,558.60 is: 11,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,899.40 : 16,426.50 = 8,558.60 : x
  2. Step 2: Convert to fraction form
    11,899.40/16,426.50 = 8,558.60/x
  3. Step 3: Cross multiply
    11,899.40x = 16,426.50 × 8,558.60
  4. Step 4: Simplify right side
    11,899.40x = 140,587,842.90
  5. Step 5: Solve for x
    x = 140,587,842.90/11,899.40
  6. Step 6: Final answer
    x = 11,814.70

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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.