Home / 11,230-16,848.72-3,438.88

Finding the Fourth Proportional to 11,230, 16,848.72 and 3,438.88

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Solution

The fourth proportional to 11,230, 16,848.72 and 3,438.88 is: 5,159.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,230 : 16,848.72 = 3,438.88 : x
  2. Step 2: Convert to fraction form
    11,230/16,848.72 = 3,438.88/x
  3. Step 3: Cross multiply
    11,230x = 16,848.72 × 3,438.88
  4. Step 4: Simplify right side
    11,230x = 57,940,726.23
  5. Step 5: Solve for x
    x = 57,940,726.23/11,230
  6. Step 6: Final answer
    x = 5,159.46

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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.