Home / 11,651.38-16,078.40-6,346.18

Finding the Fourth Proportional to 11,651.38, 16,078.40 and 6,346.18

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Solution

The fourth proportional to 11,651.38, 16,078.40 and 6,346.18 is: 8,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,651.38 : 16,078.40 = 6,346.18 : x
  2. Step 2: Convert to fraction form
    11,651.38/16,078.40 = 6,346.18/x
  3. Step 3: Cross multiply
    11,651.38x = 16,078.40 × 6,346.18
  4. Step 4: Simplify right side
    11,651.38x = 102,036,420.51
  5. Step 5: Solve for x
    x = 102,036,420.51/11,651.38
  6. Step 6: Final answer
    x = 8,757.45

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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.