Home / 14,175.41-21,217.63-9,420.65

Finding the Fourth Proportional to 14,175.41, 21,217.63 and 9,420.65

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Solution

The fourth proportional to 14,175.41, 21,217.63 and 9,420.65 is: 14,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,175.41 : 21,217.63 = 9,420.65 : x
  2. Step 2: Convert to fraction form
    14,175.41/21,217.63 = 9,420.65/x
  3. Step 3: Cross multiply
    14,175.41x = 21,217.63 × 9,420.65
  4. Step 4: Simplify right side
    14,175.41x = 199,883,992.74
  5. Step 5: Solve for x
    x = 199,883,992.74/14,175.41
  6. Step 6: Final answer
    x = 14,100.76

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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.