Home / 19,130.49-26,382.42-11,958.12

Finding the Fourth Proportional to 19,130.49, 26,382.42 and 11,958.12

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Solution

The fourth proportional to 19,130.49, 26,382.42 and 11,958.12 is: 16,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.49 : 26,382.42 = 11,958.12 : x
  2. Step 2: Convert to fraction form
    19,130.49/26,382.42 = 11,958.12/x
  3. Step 3: Cross multiply
    19,130.49x = 26,382.42 × 11,958.12
  4. Step 4: Simplify right side
    19,130.49x = 315,484,144.25
  5. Step 5: Solve for x
    x = 315,484,144.25/19,130.49
  6. Step 6: Final answer
    x = 16,491.17

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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.