Home / 19,743.79-27,245.64-10,791.40

Finding the Fourth Proportional to 19,743.79, 27,245.64 and 10,791.40

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Solution

The fourth proportional to 19,743.79, 27,245.64 and 10,791.40 is: 14,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,743.79 : 27,245.64 = 10,791.40 : x
  2. Step 2: Convert to fraction form
    19,743.79/27,245.64 = 10,791.40/x
  3. Step 3: Cross multiply
    19,743.79x = 27,245.64 × 10,791.40
  4. Step 4: Simplify right side
    19,743.79x = 294,018,599.50
  5. Step 5: Solve for x
    x = 294,018,599.50/19,743.79
  6. Step 6: Final answer
    x = 14,891.70

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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.