Home / 11,390.60-17,085.90-4,821.52

Finding the Fourth Proportional to 11,390.60, 17,085.90 and 4,821.52

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Solution

The fourth proportional to 11,390.60, 17,085.90 and 4,821.52 is: 7,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.60 : 17,085.90 = 4,821.52 : x
  2. Step 2: Convert to fraction form
    11,390.60/17,085.90 = 4,821.52/x
  3. Step 3: Cross multiply
    11,390.60x = 17,085.90 × 4,821.52
  4. Step 4: Simplify right side
    11,390.60x = 82,380,008.57
  5. Step 5: Solve for x
    x = 82,380,008.57/11,390.60
  6. Step 6: Final answer
    x = 7,232.28

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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.