Home / 14,146.48-21,219.83-4,286.53

Finding the Fourth Proportional to 14,146.48, 21,219.83 and 4,286.53

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Solution

The fourth proportional to 14,146.48, 21,219.83 and 4,286.53 is: 6,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.48 : 21,219.83 = 4,286.53 : x
  2. Step 2: Convert to fraction form
    14,146.48/21,219.83 = 4,286.53/x
  3. Step 3: Cross multiply
    14,146.48x = 21,219.83 × 4,286.53
  4. Step 4: Simplify right side
    14,146.48x = 90,959,437.89
  5. Step 5: Solve for x
    x = 90,959,437.89/14,146.48
  6. Step 6: Final answer
    x = 6,429.83

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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.