Home / 14,505.12-20,018.88-8,219.52

Finding the Fourth Proportional to 14,505.12, 20,018.88 and 8,219.52

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Solution

The fourth proportional to 14,505.12, 20,018.88 and 8,219.52 is: 11,343.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.12 : 20,018.88 = 8,219.52 : x
  2. Step 2: Convert to fraction form
    14,505.12/20,018.88 = 8,219.52/x
  3. Step 3: Cross multiply
    14,505.12x = 20,018.88 × 8,219.52
  4. Step 4: Simplify right side
    14,505.12x = 164,545,584.54
  5. Step 5: Solve for x
    x = 164,545,584.54/14,505.12
  6. Step 6: Final answer
    x = 11,343.97

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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.