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Finding the Fourth Proportional to 13,495.78, 20,254.05 and 8,814.52

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Solution

The fourth proportional to 13,495.78, 20,254.05 and 8,814.52 is: 13,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,495.78 : 20,254.05 = 8,814.52 : x
  2. Step 2: Convert to fraction form
    13,495.78/20,254.05 = 8,814.52/x
  3. Step 3: Cross multiply
    13,495.78x = 20,254.05 × 8,814.52
  4. Step 4: Simplify right side
    13,495.78x = 178,529,728.81
  5. Step 5: Solve for x
    x = 178,529,728.81/13,495.78
  6. Step 6: Final answer
    x = 13,228.56

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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.