Home / 14,273.28-21,416.40-8,441.28

Finding the Fourth Proportional to 14,273.28, 21,416.40 and 8,441.28

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Solution

The fourth proportional to 14,273.28, 21,416.40 and 8,441.28 is: 12,665.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,273.28 : 21,416.40 = 8,441.28 : x
  2. Step 2: Convert to fraction form
    14,273.28/21,416.40 = 8,441.28/x
  3. Step 3: Cross multiply
    14,273.28x = 21,416.40 × 8,441.28
  4. Step 4: Simplify right side
    14,273.28x = 180,781,828.99
  5. Step 5: Solve for x
    x = 180,781,828.99/14,273.28
  6. Step 6: Final answer
    x = 12,665.75

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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.