Home / 15,682.22-21,641.50-9,310.09

Finding the Fourth Proportional to 15,682.22, 21,641.50 and 9,310.09

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Solution

The fourth proportional to 15,682.22, 21,641.50 and 9,310.09 is: 12,847.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,682.22 : 21,641.50 = 9,310.09 : x
  2. Step 2: Convert to fraction form
    15,682.22/21,641.50 = 9,310.09/x
  3. Step 3: Cross multiply
    15,682.22x = 21,641.50 × 9,310.09
  4. Step 4: Simplify right side
    15,682.22x = 201,484,266.18
  5. Step 5: Solve for x
    x = 201,484,266.18/15,682.22
  6. Step 6: Final answer
    x = 12,847.94

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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.