Home / 19,752.54-27,276.80-12,691.37

Finding the Fourth Proportional to 19,752.54, 27,276.80 and 12,691.37

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Solution

The fourth proportional to 19,752.54, 27,276.80 and 12,691.37 is: 17,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,752.54 : 27,276.80 = 12,691.37 : x
  2. Step 2: Convert to fraction form
    19,752.54/27,276.80 = 12,691.37/x
  3. Step 3: Cross multiply
    19,752.54x = 27,276.80 × 12,691.37
  4. Step 4: Simplify right side
    19,752.54x = 346,179,761.38
  5. Step 5: Solve for x
    x = 346,179,761.38/19,752.54
  6. Step 6: Final answer
    x = 17,525.84

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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.