Home / 18,813.12-25,962.24-10,429.68

Finding the Fourth Proportional to 18,813.12, 25,962.24 and 10,429.68

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Solution

The fourth proportional to 18,813.12, 25,962.24 and 10,429.68 is: 14,393.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,813.12 : 25,962.24 = 10,429.68 : x
  2. Step 2: Convert to fraction form
    18,813.12/25,962.24 = 10,429.68/x
  3. Step 3: Cross multiply
    18,813.12x = 25,962.24 × 10,429.68
  4. Step 4: Simplify right side
    18,813.12x = 270,777,855.28
  5. Step 5: Solve for x
    x = 270,777,855.28/18,813.12
  6. Step 6: Final answer
    x = 14,393.03

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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.