Home / 19,131.12-26,403.12-12,057.12

Finding the Fourth Proportional to 19,131.12, 26,403.12 and 12,057.12

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Solution

The fourth proportional to 19,131.12, 26,403.12 and 12,057.12 is: 16,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.12 : 26,403.12 = 12,057.12 : x
  2. Step 2: Convert to fraction form
    19,131.12/26,403.12 = 12,057.12/x
  3. Step 3: Cross multiply
    19,131.12x = 26,403.12 × 12,057.12
  4. Step 4: Simplify right side
    19,131.12x = 318,345,586.21
  5. Step 5: Solve for x
    x = 318,345,586.21/19,131.12
  6. Step 6: Final answer
    x = 16,640.20

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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.