Home / 12,540.48-18,821.10-6,302.28

Finding the Fourth Proportional to 12,540.48, 18,821.10 and 6,302.28

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Solution

The fourth proportional to 12,540.48, 18,821.10 and 6,302.28 is: 9,458.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.48 : 18,821.10 = 6,302.28 : x
  2. Step 2: Convert to fraction form
    12,540.48/18,821.10 = 6,302.28/x
  3. Step 3: Cross multiply
    12,540.48x = 18,821.10 × 6,302.28
  4. Step 4: Simplify right side
    12,540.48x = 118,615,842.11
  5. Step 5: Solve for x
    x = 118,615,842.11/12,540.48
  6. Step 6: Final answer
    x = 9,458.64

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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.