Home / 11,886.30-16,401.42-6,581.43

Finding the Fourth Proportional to 11,886.30, 16,401.42 and 6,581.43

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Solution

The fourth proportional to 11,886.30, 16,401.42 and 6,581.43 is: 9,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.30 : 16,401.42 = 6,581.43 : x
  2. Step 2: Convert to fraction form
    11,886.30/16,401.42 = 6,581.43/x
  3. Step 3: Cross multiply
    11,886.30x = 16,401.42 × 6,581.43
  4. Step 4: Simplify right side
    11,886.30x = 107,944,797.63
  5. Step 5: Solve for x
    x = 107,944,797.63/11,886.30
  6. Step 6: Final answer
    x = 9,081.45

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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.