Home / 14,722.28-20,317.26-8,435.87

Finding the Fourth Proportional to 14,722.28, 20,317.26 and 8,435.87

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Solution

The fourth proportional to 14,722.28, 20,317.26 and 8,435.87 is: 11,641.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,722.28 : 20,317.26 = 8,435.87 : x
  2. Step 2: Convert to fraction form
    14,722.28/20,317.26 = 8,435.87/x
  3. Step 3: Cross multiply
    14,722.28x = 20,317.26 × 8,435.87
  4. Step 4: Simplify right side
    14,722.28x = 171,393,662.53
  5. Step 5: Solve for x
    x = 171,393,662.53/14,722.28
  6. Step 6: Final answer
    x = 11,641.79

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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.