Home / 19,251.40-26,556.80-13,272.80

Finding the Fourth Proportional to 19,251.40, 26,556.80 and 13,272.80

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Solution

The fourth proportional to 19,251.40, 26,556.80 and 13,272.80 is: 18,309.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.40 : 26,556.80 = 13,272.80 : x
  2. Step 2: Convert to fraction form
    19,251.40/26,556.80 = 13,272.80/x
  3. Step 3: Cross multiply
    19,251.40x = 26,556.80 × 13,272.80
  4. Step 4: Simplify right side
    19,251.40x = 352,483,095.04
  5. Step 5: Solve for x
    x = 352,483,095.04/19,251.40
  6. Step 6: Final answer
    x = 18,309.48

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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.