Home / 11,986.92-16,527.24-9,855

Finding the Fourth Proportional to 11,986.92, 16,527.24 and 9,855

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Solution

The fourth proportional to 11,986.92, 16,527.24 and 9,855 is: 13,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.92 : 16,527.24 = 9,855 : x
  2. Step 2: Convert to fraction form
    11,986.92/16,527.24 = 9,855/x
  3. Step 3: Cross multiply
    11,986.92x = 16,527.24 × 9,855
  4. Step 4: Simplify right side
    11,986.92x = 162,875,950.20
  5. Step 5: Solve for x
    x = 162,875,950.20/11,986.92
  6. Step 6: Final answer
    x = 13,587.81

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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.