Home / 14,619.46-21,929.38-4,758.78

Finding the Fourth Proportional to 14,619.46, 21,929.38 and 4,758.78

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Solution

The fourth proportional to 14,619.46, 21,929.38 and 4,758.78 is: 7,138.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,619.46 : 21,929.38 = 4,758.78 : x
  2. Step 2: Convert to fraction form
    14,619.46/21,929.38 = 4,758.78/x
  3. Step 3: Cross multiply
    14,619.46x = 21,929.38 × 4,758.78
  4. Step 4: Simplify right side
    14,619.46x = 104,357,094.96
  5. Step 5: Solve for x
    x = 104,357,094.96/14,619.46
  6. Step 6: Final answer
    x = 7,138.23

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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.