Home / 13,371.24-18,453.39-7,404.81

Finding the Fourth Proportional to 13,371.24, 18,453.39 and 7,404.81

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Solution

The fourth proportional to 13,371.24, 18,453.39 and 7,404.81 is: 10,219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.24 : 18,453.39 = 7,404.81 : x
  2. Step 2: Convert to fraction form
    13,371.24/18,453.39 = 7,404.81/x
  3. Step 3: Cross multiply
    13,371.24x = 18,453.39 × 7,404.81
  4. Step 4: Simplify right side
    13,371.24x = 136,643,846.81
  5. Step 5: Solve for x
    x = 136,643,846.81/13,371.24
  6. Step 6: Final answer
    x = 10,219.24

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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.