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Finding the Fourth Proportional to 10,818, 16,215.36 and 4,576.56

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Solution

The fourth proportional to 10,818, 16,215.36 and 4,576.56 is: 6,859.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818 : 16,215.36 = 4,576.56 : x
  2. Step 2: Convert to fraction form
    10,818/16,215.36 = 4,576.56/x
  3. Step 3: Cross multiply
    10,818x = 16,215.36 × 4,576.56
  4. Step 4: Simplify right side
    10,818x = 74,210,567.96
  5. Step 5: Solve for x
    x = 74,210,567.96/10,818
  6. Step 6: Final answer
    x = 6,859.92

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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.