Home / 11,442.05-15,788.20-6,406.48

Finding the Fourth Proportional to 11,442.05, 15,788.20 and 6,406.48

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Solution

The fourth proportional to 11,442.05, 15,788.20 and 6,406.48 is: 8,839.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,442.05 : 15,788.20 = 6,406.48 : x
  2. Step 2: Convert to fraction form
    11,442.05/15,788.20 = 6,406.48/x
  3. Step 3: Cross multiply
    11,442.05x = 15,788.20 × 6,406.48
  4. Step 4: Simplify right side
    11,442.05x = 101,146,732.05
  5. Step 5: Solve for x
    x = 101,146,732.05/11,442.05
  6. Step 6: Final answer
    x = 8,839.92

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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.