Home / 19,706.68-27,188.22-11,318.32

Finding the Fourth Proportional to 19,706.68, 27,188.22 and 11,318.32

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Solution

The fourth proportional to 19,706.68, 27,188.22 and 11,318.32 is: 15,615.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,706.68 : 27,188.22 = 11,318.32 : x
  2. Step 2: Convert to fraction form
    19,706.68/27,188.22 = 11,318.32/x
  3. Step 3: Cross multiply
    19,706.68x = 27,188.22 × 11,318.32
  4. Step 4: Simplify right side
    19,706.68x = 307,724,974.19
  5. Step 5: Solve for x
    x = 307,724,974.19/19,706.68
  6. Step 6: Final answer
    x = 15,615.26

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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.