Home / 14,420.35-21,635.79-5,661.28

Finding the Fourth Proportional to 14,420.35, 21,635.79 and 5,661.28

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Solution

The fourth proportional to 14,420.35, 21,635.79 and 5,661.28 is: 8,493.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.35 : 21,635.79 = 5,661.28 : x
  2. Step 2: Convert to fraction form
    14,420.35/21,635.79 = 5,661.28/x
  3. Step 3: Cross multiply
    14,420.35x = 21,635.79 × 5,661.28
  4. Step 4: Simplify right side
    14,420.35x = 122,486,265.21
  5. Step 5: Solve for x
    x = 122,486,265.21/14,420.35
  6. Step 6: Final answer
    x = 8,493.99

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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.