Home / 10,312.84-14,231.46-6,121

Finding the Fourth Proportional to 10,312.84, 14,231.46 and 6,121

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Solution

The fourth proportional to 10,312.84, 14,231.46 and 6,121 is: 8,446.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.84 : 14,231.46 = 6,121 : x
  2. Step 2: Convert to fraction form
    10,312.84/14,231.46 = 6,121/x
  3. Step 3: Cross multiply
    10,312.84x = 14,231.46 × 6,121
  4. Step 4: Simplify right side
    10,312.84x = 87,110,766.66
  5. Step 5: Solve for x
    x = 87,110,766.66/10,312.84
  6. Step 6: Final answer
    x = 8,446.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.