Home / 14,282.82-21,411.11-4,920.61

Finding the Fourth Proportional to 14,282.82, 21,411.11 and 4,920.61

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Solution

The fourth proportional to 14,282.82, 21,411.11 and 4,920.61 is: 7,376.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,282.82 : 21,411.11 = 4,920.61 : x
  2. Step 2: Convert to fraction form
    14,282.82/21,411.11 = 4,920.61/x
  3. Step 3: Cross multiply
    14,282.82x = 21,411.11 × 4,920.61
  4. Step 4: Simplify right side
    14,282.82x = 105,355,742.59
  5. Step 5: Solve for x
    x = 105,355,742.59/14,282.82
  6. Step 6: Final answer
    x = 7,376.40

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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.