Home / 14,621.75-21,934.90-4,758.70

Finding the Fourth Proportional to 14,621.75, 21,934.90 and 4,758.70

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Solution

The fourth proportional to 14,621.75, 21,934.90 and 4,758.70 is: 7,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621.75 : 21,934.90 = 4,758.70 : x
  2. Step 2: Convert to fraction form
    14,621.75/21,934.90 = 4,758.70/x
  3. Step 3: Cross multiply
    14,621.75x = 21,934.90 × 4,758.70
  4. Step 4: Simplify right side
    14,621.75x = 104,381,608.63
  5. Step 5: Solve for x
    x = 104,381,608.63/14,621.75
  6. Step 6: Final answer
    x = 7,138.79

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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.