Home / 19,491.18-26,899.40-10,992.86

Finding the Fourth Proportional to 19,491.18, 26,899.40 and 10,992.86

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Solution

The fourth proportional to 19,491.18, 26,899.40 and 10,992.86 is: 15,171.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,491.18 : 26,899.40 = 10,992.86 : x
  2. Step 2: Convert to fraction form
    19,491.18/26,899.40 = 10,992.86/x
  3. Step 3: Cross multiply
    19,491.18x = 26,899.40 × 10,992.86
  4. Step 4: Simplify right side
    19,491.18x = 295,701,338.28
  5. Step 5: Solve for x
    x = 295,701,338.28/19,491.18
  6. Step 6: Final answer
    x = 15,171.03

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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.