Home / 14,175.12-21,262.50-6,378.42

Finding the Fourth Proportional to 14,175.12, 21,262.50 and 6,378.42

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Solution

The fourth proportional to 14,175.12, 21,262.50 and 6,378.42 is: 9,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,175.12 : 21,262.50 = 6,378.42 : x
  2. Step 2: Convert to fraction form
    14,175.12/21,262.50 = 6,378.42/x
  3. Step 3: Cross multiply
    14,175.12x = 21,262.50 × 6,378.42
  4. Step 4: Simplify right side
    14,175.12x = 135,621,155.25
  5. Step 5: Solve for x
    x = 135,621,155.25/14,175.12
  6. Step 6: Final answer
    x = 9,567.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.