Home / 10,113.63-15,157.97-7,185.75

Finding the Fourth Proportional to 10,113.63, 15,157.97 and 7,185.75

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Solution

The fourth proportional to 10,113.63, 15,157.97 and 7,185.75 is: 10,769.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.63 : 15,157.97 = 7,185.75 : x
  2. Step 2: Convert to fraction form
    10,113.63/15,157.97 = 7,185.75/x
  3. Step 3: Cross multiply
    10,113.63x = 15,157.97 × 7,185.75
  4. Step 4: Simplify right side
    10,113.63x = 108,921,347.00
  5. Step 5: Solve for x
    x = 108,921,347.00/10,113.63
  6. Step 6: Final answer
    x = 10,769.76

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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.