Home / 14,146.42-21,224.20-4,285.78

Finding the Fourth Proportional to 14,146.42, 21,224.20 and 4,285.78

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Solution

The fourth proportional to 14,146.42, 21,224.20 and 4,285.78 is: 6,430.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.42 : 21,224.20 = 4,285.78 : x
  2. Step 2: Convert to fraction form
    14,146.42/21,224.20 = 4,285.78/x
  3. Step 3: Cross multiply
    14,146.42x = 21,224.20 × 4,285.78
  4. Step 4: Simplify right side
    14,146.42x = 90,962,251.88
  5. Step 5: Solve for x
    x = 90,962,251.88/14,146.42
  6. Step 6: Final answer
    x = 6,430.05

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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.