Home / 11,783.83-16,261.75-6,478.99

Finding the Fourth Proportional to 11,783.83, 16,261.75 and 6,478.99

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Solution

The fourth proportional to 11,783.83, 16,261.75 and 6,478.99 is: 8,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,783.83 : 16,261.75 = 6,478.99 : x
  2. Step 2: Convert to fraction form
    11,783.83/16,261.75 = 6,478.99/x
  3. Step 3: Cross multiply
    11,783.83x = 16,261.75 × 6,478.99
  4. Step 4: Simplify right side
    11,783.83x = 105,359,646.63
  5. Step 5: Solve for x
    x = 105,359,646.63/11,783.83
  6. Step 6: Final answer
    x = 8,941.04

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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.