Home / 13,905.11-19,197.77-10,712.39

Finding the Fourth Proportional to 13,905.11, 19,197.77 and 10,712.39

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Solution

The fourth proportional to 13,905.11, 19,197.77 and 10,712.39 is: 14,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.11 : 19,197.77 = 10,712.39 : x
  2. Step 2: Convert to fraction form
    13,905.11/19,197.77 = 10,712.39/x
  3. Step 3: Cross multiply
    13,905.11x = 19,197.77 × 10,712.39
  4. Step 4: Simplify right side
    13,905.11x = 205,653,849.82
  5. Step 5: Solve for x
    x = 205,653,849.82/13,905.11
  6. Step 6: Final answer
    x = 14,789.81

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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.