Home / 12,992.10-19,457.21-8,297.57

Finding the Fourth Proportional to 12,992.10, 19,457.21 and 8,297.57

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Solution

The fourth proportional to 12,992.10, 19,457.21 and 8,297.57 is: 12,426.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,992.10 : 19,457.21 = 8,297.57 : x
  2. Step 2: Convert to fraction form
    12,992.10/19,457.21 = 8,297.57/x
  3. Step 3: Cross multiply
    12,992.10x = 19,457.21 × 8,297.57
  4. Step 4: Simplify right side
    12,992.10x = 161,447,423.21
  5. Step 5: Solve for x
    x = 161,447,423.21/12,992.10
  6. Step 6: Final answer
    x = 12,426.58

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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.