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Finding the Fourth Proportional to 11,223.10, 16,871.10 and 9,619.30

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Solution

The fourth proportional to 11,223.10, 16,871.10 and 9,619.30 is: 14,460.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.10 : 16,871.10 = 9,619.30 : x
  2. Step 2: Convert to fraction form
    11,223.10/16,871.10 = 9,619.30/x
  3. Step 3: Cross multiply
    11,223.10x = 16,871.10 × 9,619.30
  4. Step 4: Simplify right side
    11,223.10x = 162,288,172.23
  5. Step 5: Solve for x
    x = 162,288,172.23/11,223.10
  6. Step 6: Final answer
    x = 14,460.19

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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.