Home / 18,837.86-25,981.83-13,800.26

Finding the Fourth Proportional to 18,837.86, 25,981.83 and 13,800.26

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Solution

The fourth proportional to 18,837.86, 25,981.83 and 13,800.26 is: 19,033.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.86 : 25,981.83 = 13,800.26 : x
  2. Step 2: Convert to fraction form
    18,837.86/25,981.83 = 13,800.26/x
  3. Step 3: Cross multiply
    18,837.86x = 25,981.83 × 13,800.26
  4. Step 4: Simplify right side
    18,837.86x = 358,556,009.28
  5. Step 5: Solve for x
    x = 358,556,009.28/18,837.86
  6. Step 6: Final answer
    x = 19,033.80

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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.