Home / 11,783.86-16,261.79-6,479.03

Finding the Fourth Proportional to 11,783.86, 16,261.79 and 6,479.03

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Solution

The fourth proportional to 11,783.86, 16,261.79 and 6,479.03 is: 8,941.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,783.86 : 16,261.79 = 6,479.03 : x
  2. Step 2: Convert to fraction form
    11,783.86/16,261.79 = 6,479.03/x
  3. Step 3: Cross multiply
    11,783.86x = 16,261.79 × 6,479.03
  4. Step 4: Simplify right side
    11,783.86x = 105,360,633.52
  5. Step 5: Solve for x
    x = 105,360,633.52/11,783.86
  6. Step 6: Final answer
    x = 8,941.10

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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.