Home / 13,156.32-19,687.57-10,540.63

Finding the Fourth Proportional to 13,156.32, 19,687.57 and 10,540.63

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Solution

The fourth proportional to 13,156.32, 19,687.57 and 10,540.63 is: 15,773.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.32 : 19,687.57 = 10,540.63 : x
  2. Step 2: Convert to fraction form
    13,156.32/19,687.57 = 10,540.63/x
  3. Step 3: Cross multiply
    13,156.32x = 19,687.57 × 10,540.63
  4. Step 4: Simplify right side
    13,156.32x = 207,519,390.97
  5. Step 5: Solve for x
    x = 207,519,390.97/13,156.32
  6. Step 6: Final answer
    x = 15,773.36

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1.5x scale

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.