Home / 11,242.10-16,899.60-9,638.30

Finding the Fourth Proportional to 11,242.10, 16,899.60 and 9,638.30

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Solution

The fourth proportional to 11,242.10, 16,899.60 and 9,638.30 is: 14,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,242.10 : 16,899.60 = 9,638.30 : x
  2. Step 2: Convert to fraction form
    11,242.10/16,899.60 = 9,638.30/x
  3. Step 3: Cross multiply
    11,242.10x = 16,899.60 × 9,638.30
  4. Step 4: Simplify right side
    11,242.10x = 162,883,414.68
  5. Step 5: Solve for x
    x = 162,883,414.68/11,242.10
  6. Step 6: Final answer
    x = 14,488.70

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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.