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Finding the Fourth Proportional to 14,499.56, 20,009.48 and 8,213.16

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Solution

The fourth proportional to 14,499.56, 20,009.48 and 8,213.16 is: 11,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,499.56 : 20,009.48 = 8,213.16 : x
  2. Step 2: Convert to fraction form
    14,499.56/20,009.48 = 8,213.16/x
  3. Step 3: Cross multiply
    14,499.56x = 20,009.48 × 8,213.16
  4. Step 4: Simplify right side
    14,499.56x = 164,341,060.76
  5. Step 5: Solve for x
    x = 164,341,060.76/14,499.56
  6. Step 6: Final answer
    x = 11,334.21

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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.