Home / 14,180.26-21,281.73-6,389.68

Finding the Fourth Proportional to 14,180.26, 21,281.73 and 6,389.68

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Solution

The fourth proportional to 14,180.26, 21,281.73 and 6,389.68 is: 9,589.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,180.26 : 21,281.73 = 6,389.68 : x
  2. Step 2: Convert to fraction form
    14,180.26/21,281.73 = 6,389.68/x
  3. Step 3: Cross multiply
    14,180.26x = 21,281.73 × 6,389.68
  4. Step 4: Simplify right side
    14,180.26x = 135,983,444.55
  5. Step 5: Solve for x
    x = 135,983,444.55/14,180.26
  6. Step 6: Final answer
    x = 9,589.63

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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.