Home / 11,886.49-16,403.87-6,581.31

Finding the Fourth Proportional to 11,886.49, 16,403.87 and 6,581.31

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Solution

The fourth proportional to 11,886.49, 16,403.87 and 6,581.31 is: 9,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.49 : 16,403.87 = 6,581.31 : x
  2. Step 2: Convert to fraction form
    11,886.49/16,403.87 = 6,581.31/x
  3. Step 3: Cross multiply
    11,886.49x = 16,403.87 × 6,581.31
  4. Step 4: Simplify right side
    11,886.49x = 107,958,883.93
  5. Step 5: Solve for x
    x = 107,958,883.93/11,886.49
  6. Step 6: Final answer
    x = 9,082.49

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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.