Home / 13,732.64-18,950.91-7,765.47

Finding the Fourth Proportional to 13,732.64, 18,950.91 and 7,765.47

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Solution

The fourth proportional to 13,732.64, 18,950.91 and 7,765.47 is: 10,716.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,732.64 : 18,950.91 = 7,765.47 : x
  2. Step 2: Convert to fraction form
    13,732.64/18,950.91 = 7,765.47/x
  3. Step 3: Cross multiply
    13,732.64x = 18,950.91 × 7,765.47
  4. Step 4: Simplify right side
    13,732.64x = 147,162,723.08
  5. Step 5: Solve for x
    x = 147,162,723.08/13,732.64
  6. Step 6: Final answer
    x = 10,716.28

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1.5x scale

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.