Home / 11,694.81-17,621.13-9,660.39

Finding the Fourth Proportional to 11,694.81, 17,621.13 and 9,660.39

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Solution

The fourth proportional to 11,694.81, 17,621.13 and 9,660.39 is: 14,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,694.81 : 17,621.13 = 9,660.39 : x
  2. Step 2: Convert to fraction form
    11,694.81/17,621.13 = 9,660.39/x
  3. Step 3: Cross multiply
    11,694.81x = 17,621.13 × 9,660.39
  4. Step 4: Simplify right side
    11,694.81x = 170,226,988.04
  5. Step 5: Solve for x
    x = 170,226,988.04/11,694.81
  6. Step 6: Final answer
    x = 14,555.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.