Home / 14,687.19-20,268.33-7,972.82

Finding the Fourth Proportional to 14,687.19, 20,268.33 and 7,972.82

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Solution

The fourth proportional to 14,687.19, 20,268.33 and 7,972.82 is: 11,002.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.19 : 20,268.33 = 7,972.82 : x
  2. Step 2: Convert to fraction form
    14,687.19/20,268.33 = 7,972.82/x
  3. Step 3: Cross multiply
    14,687.19x = 20,268.33 × 7,972.82
  4. Step 4: Simplify right side
    14,687.19x = 161,595,645.45
  5. Step 5: Solve for x
    x = 161,595,645.45/14,687.19
  6. Step 6: Final answer
    x = 11,002.49

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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.