Home / 18,418.86-27,628.54-5,271.23

Finding the Fourth Proportional to 18,418.86, 27,628.54 and 5,271.23

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Solution

The fourth proportional to 18,418.86, 27,628.54 and 5,271.23 is: 7,906.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.86 : 27,628.54 = 5,271.23 : x
  2. Step 2: Convert to fraction form
    18,418.86/27,628.54 = 5,271.23/x
  3. Step 3: Cross multiply
    18,418.86x = 27,628.54 × 5,271.23
  4. Step 4: Simplify right side
    18,418.86x = 145,636,444.80
  5. Step 5: Solve for x
    x = 145,636,444.80/18,418.86
  6. Step 6: Final answer
    x = 7,906.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.