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Finding the Fourth Proportional to 18,347.58, 27,460.89 and 13,940.64

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Solution

The fourth proportional to 18,347.58, 27,460.89 and 13,940.64 is: 20,865.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.58 : 27,460.89 = 13,940.64 : x
  2. Step 2: Convert to fraction form
    18,347.58/27,460.89 = 13,940.64/x
  3. Step 3: Cross multiply
    18,347.58x = 27,460.89 × 13,940.64
  4. Step 4: Simplify right side
    18,347.58x = 382,822,381.57
  5. Step 5: Solve for x
    x = 382,822,381.57/18,347.58
  6. Step 6: Final answer
    x = 20,865.01

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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.