Home / 14,709.28-20,299.26-8,423.68

Finding the Fourth Proportional to 14,709.28, 20,299.26 and 8,423.68

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Solution

The fourth proportional to 14,709.28, 20,299.26 and 8,423.68 is: 11,624.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,709.28 : 20,299.26 = 8,423.68 : x
  2. Step 2: Convert to fraction form
    14,709.28/20,299.26 = 8,423.68/x
  3. Step 3: Cross multiply
    14,709.28x = 20,299.26 × 8,423.68
  4. Step 4: Simplify right side
    14,709.28x = 170,994,470.48
  5. Step 5: Solve for x
    x = 170,994,470.48/14,709.28
  6. Step 6: Final answer
    x = 11,624.94

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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.