Home / 15,722.35-23,578.52-5,190.41

Finding the Fourth Proportional to 15,722.35, 23,578.52 and 5,190.41

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Solution

The fourth proportional to 15,722.35, 23,578.52 and 5,190.41 is: 7,783.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.35 : 23,578.52 = 5,190.41 : x
  2. Step 2: Convert to fraction form
    15,722.35/23,578.52 = 5,190.41/x
  3. Step 3: Cross multiply
    15,722.35x = 23,578.52 × 5,190.41
  4. Step 4: Simplify right side
    15,722.35x = 122,382,159.76
  5. Step 5: Solve for x
    x = 122,382,159.76/15,722.35
  6. Step 6: Final answer
    x = 7,783.96

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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.