Home / 18,191.72-27,289.20-7,801.04

Finding the Fourth Proportional to 18,191.72, 27,289.20 and 7,801.04

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Solution

The fourth proportional to 18,191.72, 27,289.20 and 7,801.04 is: 11,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.72 : 27,289.20 = 7,801.04 : x
  2. Step 2: Convert to fraction form
    18,191.72/27,289.20 = 7,801.04/x
  3. Step 3: Cross multiply
    18,191.72x = 27,289.20 × 7,801.04
  4. Step 4: Simplify right side
    18,191.72x = 212,884,140.77
  5. Step 5: Solve for x
    x = 212,884,140.77/18,191.72
  6. Step 6: Final answer
    x = 11,702.25

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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.