Home / 14,278.92-21,419.82-4,917.70

Finding the Fourth Proportional to 14,278.92, 21,419.82 and 4,917.70

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Solution

The fourth proportional to 14,278.92, 21,419.82 and 4,917.70 is: 7,377.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.92 : 21,419.82 = 4,917.70 : x
  2. Step 2: Convert to fraction form
    14,278.92/21,419.82 = 4,917.70/x
  3. Step 3: Cross multiply
    14,278.92x = 21,419.82 × 4,917.70
  4. Step 4: Simplify right side
    14,278.92x = 105,336,248.81
  5. Step 5: Solve for x
    x = 105,336,248.81/14,278.92
  6. Step 6: Final answer
    x = 7,377.05

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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.