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Finding the Fourth Proportional to 11,009.01, 16,503.80 and 8,423.49

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Solution

The fourth proportional to 11,009.01, 16,503.80 and 8,423.49 is: 12,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.01 : 16,503.80 = 8,423.49 : x
  2. Step 2: Convert to fraction form
    11,009.01/16,503.80 = 8,423.49/x
  3. Step 3: Cross multiply
    11,009.01x = 16,503.80 × 8,423.49
  4. Step 4: Simplify right side
    11,009.01x = 139,019,552.14
  5. Step 5: Solve for x
    x = 139,019,552.14/11,009.01
  6. Step 6: Final answer
    x = 12,627.80

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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.