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Finding the Fourth Proportional to 10,999.74, 16,468.58 and 8,563.08

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Solution

The fourth proportional to 10,999.74, 16,468.58 and 8,563.08 is: 12,820.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.74 : 16,468.58 = 8,563.08 : x
  2. Step 2: Convert to fraction form
    10,999.74/16,468.58 = 8,563.08/x
  3. Step 3: Cross multiply
    10,999.74x = 16,468.58 × 8,563.08
  4. Step 4: Simplify right side
    10,999.74x = 141,021,768.03
  5. Step 5: Solve for x
    x = 141,021,768.03/10,999.74
  6. Step 6: Final answer
    x = 12,820.46

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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.