Home / 18,715.75-25,826.67-10,648.31

Finding the Fourth Proportional to 18,715.75, 25,826.67 and 10,648.31

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Solution

The fourth proportional to 18,715.75, 25,826.67 and 10,648.31 is: 14,694.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.75 : 25,826.67 = 10,648.31 : x
  2. Step 2: Convert to fraction form
    18,715.75/25,826.67 = 10,648.31/x
  3. Step 3: Cross multiply
    18,715.75x = 25,826.67 × 10,648.31
  4. Step 4: Simplify right side
    18,715.75x = 275,010,452.99
  5. Step 5: Solve for x
    x = 275,010,452.99/18,715.75
  6. Step 6: Final answer
    x = 14,694.07

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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.