Home / 19,171.06-28,737.90-9,173.20

Finding the Fourth Proportional to 19,171.06, 28,737.90 and 9,173.20

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Solution

The fourth proportional to 19,171.06, 28,737.90 and 9,173.20 is: 13,750.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.06 : 28,737.90 = 9,173.20 : x
  2. Step 2: Convert to fraction form
    19,171.06/28,737.90 = 9,173.20/x
  3. Step 3: Cross multiply
    19,171.06x = 28,737.90 × 9,173.20
  4. Step 4: Simplify right side
    19,171.06x = 263,618,504.28
  5. Step 5: Solve for x
    x = 263,618,504.28/19,171.06
  6. Step 6: Final answer
    x = 13,750.86

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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.