Home / 18,427.24-25,429.86-10,469.68

Finding the Fourth Proportional to 18,427.24, 25,429.86 and 10,469.68

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Solution

The fourth proportional to 18,427.24, 25,429.86 and 10,469.68 is: 14,448.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.24 : 25,429.86 = 10,469.68 : x
  2. Step 2: Convert to fraction form
    18,427.24/25,429.86 = 10,469.68/x
  3. Step 3: Cross multiply
    18,427.24x = 25,429.86 × 10,469.68
  4. Step 4: Simplify right side
    18,427.24x = 266,242,496.64
  5. Step 5: Solve for x
    x = 266,242,496.64/18,427.24
  6. Step 6: Final answer
    x = 14,448.31

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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.