Home / 19,912.64-27,492.11-12,370.02

Finding the Fourth Proportional to 19,912.64, 27,492.11 and 12,370.02

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Solution

The fourth proportional to 19,912.64, 27,492.11 and 12,370.02 is: 17,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.64 : 27,492.11 = 12,370.02 : x
  2. Step 2: Convert to fraction form
    19,912.64/27,492.11 = 12,370.02/x
  3. Step 3: Cross multiply
    19,912.64x = 27,492.11 × 12,370.02
  4. Step 4: Simplify right side
    19,912.64x = 340,077,831.98
  5. Step 5: Solve for x
    x = 340,077,831.98/19,912.64
  6. Step 6: Final answer
    x = 17,078.49

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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.