Home / 15,765.08-21,757.78-9,052.81

Finding the Fourth Proportional to 15,765.08, 21,757.78 and 9,052.81

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Solution

The fourth proportional to 15,765.08, 21,757.78 and 9,052.81 is: 12,494.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.08 : 21,757.78 = 9,052.81 : x
  2. Step 2: Convert to fraction form
    15,765.08/21,757.78 = 9,052.81/x
  3. Step 3: Cross multiply
    15,765.08x = 21,757.78 × 9,052.81
  4. Step 4: Simplify right side
    15,765.08x = 196,969,048.36
  5. Step 5: Solve for x
    x = 196,969,048.36/15,765.08
  6. Step 6: Final answer
    x = 12,494.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.