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Finding the Fourth Proportional to 8,388.54, 11,575.80 and 5,030.64

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Solution

The fourth proportional to 8,388.54, 11,575.80 and 5,030.64 is: 6,942.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.54 : 11,575.80 = 5,030.64 : x
  2. Step 2: Convert to fraction form
    8,388.54/11,575.80 = 5,030.64/x
  3. Step 3: Cross multiply
    8,388.54x = 11,575.80 × 5,030.64
  4. Step 4: Simplify right side
    8,388.54x = 58,233,682.51
  5. Step 5: Solve for x
    x = 58,233,682.51/8,388.54
  6. Step 6: Final answer
    x = 6,942.05

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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.