Home / 12,556.13-18,821.04-4,233.28

Finding the Fourth Proportional to 12,556.13, 18,821.04 and 4,233.28

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Solution

The fourth proportional to 12,556.13, 18,821.04 and 4,233.28 is: 6,345.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.13 : 18,821.04 = 4,233.28 : x
  2. Step 2: Convert to fraction form
    12,556.13/18,821.04 = 4,233.28/x
  3. Step 3: Cross multiply
    12,556.13x = 18,821.04 × 4,233.28
  4. Step 4: Simplify right side
    12,556.13x = 79,674,728.39
  5. Step 5: Solve for x
    x = 79,674,728.39/12,556.13
  6. Step 6: Final answer
    x = 6,345.48

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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.