Home / 19,942.32-27,516.36-12,486

Finding the Fourth Proportional to 19,942.32, 27,516.36 and 12,486

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Solution

The fourth proportional to 19,942.32, 27,516.36 and 12,486 is: 17,228.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.32 : 27,516.36 = 12,486 : x
  2. Step 2: Convert to fraction form
    19,942.32/27,516.36 = 12,486/x
  3. Step 3: Cross multiply
    19,942.32x = 27,516.36 × 12,486
  4. Step 4: Simplify right side
    19,942.32x = 343,569,270.96
  5. Step 5: Solve for x
    x = 343,569,270.96/19,942.32
  6. Step 6: Final answer
    x = 17,228.15

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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.