Home / 11,769.72-16,242.50-6,464.88

Finding the Fourth Proportional to 11,769.72, 16,242.50 and 6,464.88

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Solution

The fourth proportional to 11,769.72, 16,242.50 and 6,464.88 is: 8,921.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,769.72 : 16,242.50 = 6,464.88 : x
  2. Step 2: Convert to fraction form
    11,769.72/16,242.50 = 6,464.88/x
  3. Step 3: Cross multiply
    11,769.72x = 16,242.50 × 6,464.88
  4. Step 4: Simplify right side
    11,769.72x = 105,005,813.40
  5. Step 5: Solve for x
    x = 105,005,813.40/11,769.72
  6. Step 6: Final answer
    x = 8,921.69

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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.