Home / 11,388.60-15,709.95-6,671.97

Finding the Fourth Proportional to 11,388.60, 15,709.95 and 6,671.97

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Solution

The fourth proportional to 11,388.60, 15,709.95 and 6,671.97 is: 9,203.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.60 : 15,709.95 = 6,671.97 : x
  2. Step 2: Convert to fraction form
    11,388.60/15,709.95 = 6,671.97/x
  3. Step 3: Cross multiply
    11,388.60x = 15,709.95 × 6,671.97
  4. Step 4: Simplify right side
    11,388.60x = 104,816,315.10
  5. Step 5: Solve for x
    x = 104,816,315.10/11,388.60
  6. Step 6: Final answer
    x = 9,203.62

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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.