Home / 11,835.60-17,716.95-9,721.50

Finding the Fourth Proportional to 11,835.60, 17,716.95 and 9,721.50

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Solution

The fourth proportional to 11,835.60, 17,716.95 and 9,721.50 is: 14,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,835.60 : 17,716.95 = 9,721.50 : x
  2. Step 2: Convert to fraction form
    11,835.60/17,716.95 = 9,721.50/x
  3. Step 3: Cross multiply
    11,835.60x = 17,716.95 × 9,721.50
  4. Step 4: Simplify right side
    11,835.60x = 172,235,329.43
  5. Step 5: Solve for x
    x = 172,235,329.43/11,835.60
  6. Step 6: Final answer
    x = 14,552.31

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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.