Home / 19,854.72-27,396.27-11,355.47

Finding the Fourth Proportional to 19,854.72, 27,396.27 and 11,355.47

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Solution

The fourth proportional to 19,854.72, 27,396.27 and 11,355.47 is: 15,668.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,854.72 : 27,396.27 = 11,355.47 : x
  2. Step 2: Convert to fraction form
    19,854.72/27,396.27 = 11,355.47/x
  3. Step 3: Cross multiply
    19,854.72x = 27,396.27 × 11,355.47
  4. Step 4: Simplify right side
    19,854.72x = 311,097,385.12
  5. Step 5: Solve for x
    x = 311,097,385.12/19,854.72
  6. Step 6: Final answer
    x = 15,668.69

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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.