Home / 18,343.17-27,548.78-12,800.34

Finding the Fourth Proportional to 18,343.17, 27,548.78 and 12,800.34

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Solution

The fourth proportional to 18,343.17, 27,548.78 and 12,800.34 is: 19,224.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.17 : 27,548.78 = 12,800.34 : x
  2. Step 2: Convert to fraction form
    18,343.17/27,548.78 = 12,800.34/x
  3. Step 3: Cross multiply
    18,343.17x = 27,548.78 × 12,800.34
  4. Step 4: Simplify right side
    18,343.17x = 352,633,750.59
  5. Step 5: Solve for x
    x = 352,633,750.59/18,343.17
  6. Step 6: Final answer
    x = 19,224.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.