Home / 13,431.99-18,535.25-7,463.66

Finding the Fourth Proportional to 13,431.99, 18,535.25 and 7,463.66

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Solution

The fourth proportional to 13,431.99, 18,535.25 and 7,463.66 is: 10,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.99 : 18,535.25 = 7,463.66 : x
  2. Step 2: Convert to fraction form
    13,431.99/18,535.25 = 7,463.66/x
  3. Step 3: Cross multiply
    13,431.99x = 18,535.25 × 7,463.66
  4. Step 4: Simplify right side
    13,431.99x = 138,340,674.02
  5. Step 5: Solve for x
    x = 138,340,674.02/13,431.99
  6. Step 6: Final answer
    x = 10,299.34

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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.