Home / 15,109.75-22,665.84-4,721.50

Finding the Fourth Proportional to 15,109.75, 22,665.84 and 4,721.50

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Solution

The fourth proportional to 15,109.75, 22,665.84 and 4,721.50 is: 7,082.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,109.75 : 22,665.84 = 4,721.50 : x
  2. Step 2: Convert to fraction form
    15,109.75/22,665.84 = 4,721.50/x
  3. Step 3: Cross multiply
    15,109.75x = 22,665.84 × 4,721.50
  4. Step 4: Simplify right side
    15,109.75x = 107,016,763.56
  5. Step 5: Solve for x
    x = 107,016,763.56/15,109.75
  6. Step 6: Final answer
    x = 7,082.63

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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.