Home / 14,845.38-20,486.58-8,384.31

Finding the Fourth Proportional to 14,845.38, 20,486.58 and 8,384.31

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Solution

The fourth proportional to 14,845.38, 20,486.58 and 8,384.31 is: 11,570.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,845.38 : 20,486.58 = 8,384.31 : x
  2. Step 2: Convert to fraction form
    14,845.38/20,486.58 = 8,384.31/x
  3. Step 3: Cross multiply
    14,845.38x = 20,486.58 × 8,384.31
  4. Step 4: Simplify right side
    14,845.38x = 171,765,837.56
  5. Step 5: Solve for x
    x = 171,765,837.56/14,845.38
  6. Step 6: Final answer
    x = 11,570.32

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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.