Home / 19,491.49-26,899.66-10,995

Finding the Fourth Proportional to 19,491.49, 26,899.66 and 10,995

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Solution

The fourth proportional to 19,491.49, 26,899.66 and 10,995 is: 15,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,491.49 : 26,899.66 = 10,995 : x
  2. Step 2: Convert to fraction form
    19,491.49/26,899.66 = 10,995/x
  3. Step 3: Cross multiply
    19,491.49x = 26,899.66 × 10,995
  4. Step 4: Simplify right side
    19,491.49x = 295,761,761.70
  5. Step 5: Solve for x
    x = 295,761,761.70/19,491.49
  6. Step 6: Final answer
    x = 15,173.89

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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.