Home / 11,784.45-16,262.84-6,407.24

Finding the Fourth Proportional to 11,784.45, 16,262.84 and 6,407.24

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Solution

The fourth proportional to 11,784.45, 16,262.84 and 6,407.24 is: 8,842.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,784.45 : 16,262.84 = 6,407.24 : x
  2. Step 2: Convert to fraction form
    11,784.45/16,262.84 = 6,407.24/x
  3. Step 3: Cross multiply
    11,784.45x = 16,262.84 × 6,407.24
  4. Step 4: Simplify right side
    11,784.45x = 104,199,990.88
  5. Step 5: Solve for x
    x = 104,199,990.88/11,784.45
  6. Step 6: Final answer
    x = 8,842.16

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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.