Home / 14,291.28-21,407.67-8,433.75

Finding the Fourth Proportional to 14,291.28, 21,407.67 and 8,433.75

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Solution

The fourth proportional to 14,291.28, 21,407.67 and 8,433.75 is: 12,633.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.28 : 21,407.67 = 8,433.75 : x
  2. Step 2: Convert to fraction form
    14,291.28/21,407.67 = 8,433.75/x
  3. Step 3: Cross multiply
    14,291.28x = 21,407.67 × 8,433.75
  4. Step 4: Simplify right side
    14,291.28x = 180,546,936.86
  5. Step 5: Solve for x
    x = 180,546,936.86/14,291.28
  6. Step 6: Final answer
    x = 12,633.36

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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.