Home / 11,248.77-16,872.63-2,815.34

Finding the Fourth Proportional to 11,248.77, 16,872.63 and 2,815.34

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Solution

The fourth proportional to 11,248.77, 16,872.63 and 2,815.34 is: 4,222.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.77 : 16,872.63 = 2,815.34 : x
  2. Step 2: Convert to fraction form
    11,248.77/16,872.63 = 2,815.34/x
  3. Step 3: Cross multiply
    11,248.77x = 16,872.63 × 2,815.34
  4. Step 4: Simplify right side
    11,248.77x = 47,502,269.23
  5. Step 5: Solve for x
    x = 47,502,269.23/11,248.77
  6. Step 6: Final answer
    x = 4,222.88

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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.