Home / 19,817.64-27,342.90-12,260.34

Finding the Fourth Proportional to 19,817.64, 27,342.90 and 12,260.34

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Solution

The fourth proportional to 19,817.64, 27,342.90 and 12,260.34 is: 16,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.64 : 27,342.90 = 12,260.34 : x
  2. Step 2: Convert to fraction form
    19,817.64/27,342.90 = 12,260.34/x
  3. Step 3: Cross multiply
    19,817.64x = 27,342.90 × 12,260.34
  4. Step 4: Simplify right side
    19,817.64x = 335,233,250.59
  5. Step 5: Solve for x
    x = 335,233,250.59/19,817.64
  6. Step 6: Final answer
    x = 16,915.90

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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.