Home / 11,769.79-16,242.59-6,464.95

Finding the Fourth Proportional to 11,769.79, 16,242.59 and 6,464.95

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Solution

The fourth proportional to 11,769.79, 16,242.59 and 6,464.95 is: 8,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,769.79 : 16,242.59 = 6,464.95 : x
  2. Step 2: Convert to fraction form
    11,769.79/16,242.59 = 6,464.95/x
  3. Step 3: Cross multiply
    11,769.79x = 16,242.59 × 6,464.95
  4. Step 4: Simplify right side
    11,769.79x = 105,007,532.22
  5. Step 5: Solve for x
    x = 105,007,532.22/11,769.79
  6. Step 6: Final answer
    x = 8,921.78

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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.