Home / 11,688.39-17,429.64-11,583.09

Finding the Fourth Proportional to 11,688.39, 17,429.64 and 11,583.09

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Solution

The fourth proportional to 11,688.39, 17,429.64 and 11,583.09 is: 17,272.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.39 : 17,429.64 = 11,583.09 : x
  2. Step 2: Convert to fraction form
    11,688.39/17,429.64 = 11,583.09/x
  3. Step 3: Cross multiply
    11,688.39x = 17,429.64 × 11,583.09
  4. Step 4: Simplify right side
    11,688.39x = 201,889,088.79
  5. Step 5: Solve for x
    x = 201,889,088.79/11,688.39
  6. Step 6: Final answer
    x = 17,272.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.