Home / 11,686.61-16,127.96-6,651.29

Finding the Fourth Proportional to 11,686.61, 16,127.96 and 6,651.29

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Solution

The fourth proportional to 11,686.61, 16,127.96 and 6,651.29 is: 9,179.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.61 : 16,127.96 = 6,651.29 : x
  2. Step 2: Convert to fraction form
    11,686.61/16,127.96 = 6,651.29/x
  3. Step 3: Cross multiply
    11,686.61x = 16,127.96 × 6,651.29
  4. Step 4: Simplify right side
    11,686.61x = 107,271,739.07
  5. Step 5: Solve for x
    x = 107,271,739.07/11,686.61
  6. Step 6: Final answer
    x = 9,179.03

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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.