Home / 18,815.17-25,965.73-10,750.15

Finding the Fourth Proportional to 18,815.17, 25,965.73 and 10,750.15

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Solution

The fourth proportional to 18,815.17, 25,965.73 and 10,750.15 is: 14,835.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.17 : 25,965.73 = 10,750.15 : x
  2. Step 2: Convert to fraction form
    18,815.17/25,965.73 = 10,750.15/x
  3. Step 3: Cross multiply
    18,815.17x = 25,965.73 × 10,750.15
  4. Step 4: Simplify right side
    18,815.17x = 279,135,557.27
  5. Step 5: Solve for x
    x = 279,135,557.27/18,815.17
  6. Step 6: Final answer
    x = 14,835.66

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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.