Home / 19,808.79-27,336.12-11,425.29

Finding the Fourth Proportional to 19,808.79, 27,336.12 and 11,425.29

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Solution

The fourth proportional to 19,808.79, 27,336.12 and 11,425.29 is: 15,766.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,808.79 : 27,336.12 = 11,425.29 : x
  2. Step 2: Convert to fraction form
    19,808.79/27,336.12 = 11,425.29/x
  3. Step 3: Cross multiply
    19,808.79x = 27,336.12 × 11,425.29
  4. Step 4: Simplify right side
    19,808.79x = 312,323,098.47
  5. Step 5: Solve for x
    x = 312,323,098.47/19,808.79
  6. Step 6: Final answer
    x = 15,766.89

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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.