Home / 11,466.46-15,821.76-6,429.88

Finding the Fourth Proportional to 11,466.46, 15,821.76 and 6,429.88

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Solution

The fourth proportional to 11,466.46, 15,821.76 and 6,429.88 is: 8,872.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,466.46 : 15,821.76 = 6,429.88 : x
  2. Step 2: Convert to fraction form
    11,466.46/15,821.76 = 6,429.88/x
  3. Step 3: Cross multiply
    11,466.46x = 15,821.76 × 6,429.88
  4. Step 4: Simplify right side
    11,466.46x = 101,732,018.19
  5. Step 5: Solve for x
    x = 101,732,018.19/11,466.46
  6. Step 6: Final answer
    x = 8,872.14

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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.