Home / 18,704.90-28,058.70-11,293.40

Finding the Fourth Proportional to 18,704.90, 28,058.70 and 11,293.40

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Solution

The fourth proportional to 18,704.90, 28,058.70 and 11,293.40 is: 16,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.90 : 28,058.70 = 11,293.40 : x
  2. Step 2: Convert to fraction form
    18,704.90/28,058.70 = 11,293.40/x
  3. Step 3: Cross multiply
    18,704.90x = 28,058.70 × 11,293.40
  4. Step 4: Simplify right side
    18,704.90x = 316,878,122.58
  5. Step 5: Solve for x
    x = 316,878,122.58/18,704.90
  6. Step 6: Final answer
    x = 16,940.92

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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.